The world might run out of a crucial ingredient of touch screens. But don’t worry, we’ve invented an alternative

Timothy Muza/Unsplash, CC BY-SA

Behnam Akhavan, University of SydneyHave you ever imagined your smart phone or tablet without a touch screen? This could soon be the case if we run out of indium, one of the rarest minerals on Earth.

Indium is used in many high-tech devices such as touch screens, smart phones, solar panels and smart windows, in the form of indium tin oxide. This compound is optically transparent and electrically conductive — the two crucial features required for touch screens to work.

But there’s a problem: we have no guaranteed long-term supply of indium. It is naturally found only in tiny traces, and is therefore impractical to mine directly. Almost all of the world’s indium comes as a byproduct of zinc mining.

Fortunately, we have a potential solution: my colleagues and I have developed a new way to make optically transparent and electrically conductive coatings without indium.

A worsening problem

Because the world’s indium supply is tied to zinc mining, its availability and price will depend on the demand for zinc.

Possible declines in zinc demand — already evident in the car manufacturing industry — along with the ever-increasing usage of smart phones and touch panels — are set to exacerbate the potential shortage of indium in the future.

One option is to try and recycle indium. But recovering it from used devices is expensive because of the tiny amounts involved.

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Read more:
Touch screens: why a new transparent conducting material is sorely needed

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When a crucial material is in short supply, we should look for alternatives. And that’s exactly what my colleagues and I have found.

How does it work?

Our new coating, details of which are published in the journal Solar Energy Materials and Solar Cells, involves plasma technology.

Plasma is like a soup of charged particles in which electrons have been ripped away from their atoms, and is often described as the fourth state of matter, after solid, liquid and gas. It might sound like an exotic substance, but in fact it comprises more than 99% of the visible objects in the universe. Our Sun, like most stars, is essentially a giant ball of glowing plasma.

Closer to home, fluorescent lightbulbs and neon signs also contain plasma. Our new touchscreen films don’t contain plasma, but their manufacture uses plasma as a way to create new materials that would otherwise be impossible to make.

The new material is created using a process called plasma sputtering.
Behnam Akhavan

Our coating is made of an ultra-thin layer of silver, sandwiched between two layers of tungsten oxide. This structure is less than 100 nanometres thick — roughly one-thousandth of the width of a human hair.

These ultra-thin sandwich layers are created and coated onto glass using a process called “plasma sputtering”. This involves subjecting a mixture of argon and oxygen gases to a strong electric field, until this mixture transforms into the plasma state. The plasma is used to bombard a tungsten solid target, detaching atoms from it and depositing them as a super-thin layer onto the glass surface.

We then repeat this process using silver, and then a final third time tungsten oxide embedded with silver nanoparticles. The entire process takes only a few minutes, produces minimal waste, is cheaper than using indium, and can be used for any glass surface such as a phone screen or window.

The finished result is a sandwich of tungsten oxide and silver, coated onto glass.
Behnam Akhavan, Author provided

The finished plasma coating also has another intriguing feature: it is electrochromic, meaning it can become more or less opaque, or change colour, if an electrical voltage is applied.

This means it could be used to create super-thin “printable displays” that can become dimmer or brighter, or change colour as desired. They would be flexible and use little power, meaning they could be used for a range of purposes including smart labels or smart windows.

The material’s opacity can be changed by varying the voltage.
Behnam Akhavan, Author provided

Smart windows coated with our new films could be used to block the flow of light and thus heat as required. Our plasma film can be applied to any glass surface, which can then be set to adjust its transparency depending on the weather outside. Unlike existing “photochromic” spectacle lenses, which respond to ambient light levels, our material responds to electrical signals, meaning it can be manipulated at will.

Our new indium-free technology holds great potential to manufacture the next-generation touch-screen devices such as smart phones or electronic papers, as well as smart windows and solar cells for environmental sustainability. This technology is ready to be scaled up for creating coatings on commercial glass, and we are now doing further research and development to adapt them for future wearable electronic devices.

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Read more:
From cobalt to tungsten: how electric cars and smartphones are sparking a new kind of gold rush

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Behnam Akhavan, Senior Lecturer, ARC DECRA Fellow, School of Biomedical Engineering and School of Physics, Sydney Nano Institute, University of Sydney

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Ransomware

I’ve always wondered: why do our computing devices seem to slow down?

Your gadgets might slow down if they’re bloated with apps.
Neirfy/Shutterstock

Robert Merkel, Monash University

This is an article from I’ve Always Wondered, a series where readers send in questions they’d like an expert to answer. Send your question to alwayswondered@theconversation.edu.au

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“Why do phones, tablets and computers always slow down as they get older, to the point that they become unusable, but when I back it up and restore it onto a brand new device, it’s fast again (despite not changing any of the installed software)?” – Jason Yosar

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Plenty of misconceptions and conspiracy theories surround this topic.

Internet searches for “iPhone slow” spike after the release of a new-generation model, but there’s no evidence to suggest that manufacturers deliberately degrade the performance of older devices with software updates.

Computer hardware does not typically slow down over its useful life. Instead, there are several other reasons why smartphones, tablets and PCs start to seem less snappy. The good news is that you can often take steps to improve your existing device’s performance.

Memory bloat

Each time they update, apps typically become larger and more full of features. Visual pizzazz is also a major attraction, and so desktop and mobile operating systems periodically receive significant redesigns.

All that extra functionality and glitz requires your device to do more computation than it did when it arrived home from the store. Given that it doesn’t magically speed up to compensate, it has less spare capacity available to respond to you quickly.

Newer apps not only tend to do more computation, they also usually take up more space in your device’s storage.

Devices only have a limited amount of fast “Random Access Memory” (RAM) available. One of a device’s data storage components, RAM is the rough equivalent of an office whiteboard – fast and convenient, but limited in capacity. Its contents are wiped every time you switch your device off.

When it runs out of space in RAM, your device can shift things to and from the much slower (and permanent until explicitly erased) data storage, flash memory, which takes considerable time.

In older PCs with mechanical hard disks, this used to be called “thrashing”, as users heard the hard disk’s read-write heads moving across the platters as they waited for data to be shifted in and out of the filled-up RAM.

Flash memory is silent and much faster than magnetic hard disks ever were, but it is still orders of magnitude slower than RAM.

Random Access Memory is a form of data storage.
Marcin Bajer/Flickr, CC BY-NC

Excessive cacheing

To make their apps run faster, some designers make them store copies of things in RAM that they think the user might want to see again to speed things up. For instance, a web browser might retain a copy of what the content in each tab looks like, even if only one tab is visible at a given moment.

Known as cacheing, this makes things work much faster – until your system starts to run out of memory. For cacheing to be effective, the amount of space devoted to it must be carefully managed by the application and the device’s operating system.
Some app developers don’t put the effort that they should into doing this well, and their applications not only slow down over time, but can drag the rest of the system down with them too.

More and more software

It’s also not uncommon for useful software to be accompanied by “crapware” – less-than-useful add-ons like browser toolbars – that use system resources and impact performance.

Additional software can slow a system down in many ways: filling up permanent storage, using up more precious RAM, and using the computer’s central processing unit “in the background” without you noticing. All these factors can result in the system having fewer resources available to respond to you promptly.

A new or factory-reset device tends to have less of this accumulated “cruft” (unwanted data and software) installed, and therefore has more resources available to do the tasks that a user actually wants.

Another unpleasant possibility is that some of the computing capabilities of your device are being used by malware – whether viruses, worms or other varieties of malicious software.

What can you do?

You’re not going to be able to match the performance of the latest and greatest high-end smartphone, tablet, or PC with an older model, as newer devices generally have fundamentally faster components. But with a small amount of effort, you can get the most out of your existing device.

Whether you’re using a phone, tablet, PC or Mac, the most useful zero-cost action you can take is to uninstall unnecessary apps and add-ons.

However, in some circumstances it may be easier – AFTER carefully backing up all your data – to simply perform the equivalent of a factory reset and reinstall the operating system from scratch, adding only the apps you actually need.

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Robert Merkel, Lecturer in Software Engineering, Monash University

This article was originally published on The Conversation. Read the original article.

Explainer: how internet routers work and why you should keep them secure

Think of your router as the post office for the internet.
www.shutterstock.com

Nicholas Patterson, Deakin University

Most of us would be bereft without Wi-Fi but give a little thought to the technology that beams us the internet.

The device we pay so little attention to is called a router. Its main role is to connect networks and send and receive data from an internet provider.

But many routers aren’t particularly secure.

The importance of understanding how routers work and how to protect them from malicious attacks was highlighted by WikiLeaks’s recent revelations about the existence of an alleged CIA hacking tool, code named “CherryBlossom”. This tool can apparently hack routers, allowing the perpetrator to monitor traffic and perform software exploits on victims.

The average person is unlikely to be targeted by this level of attack. But if you’re going to have a router at home, it’s important to understand exactly how it works.

How does a router work?

A router is like a post office for the internet: it acts as a dispatcher, choosing the fastest and most effective delivery paths.

Let’s assume you have a smartphone at home that’s connected to your router and through that, the internet. You’re keen to find a song to listen to. Here’s how it works:

1. Your smartphone takes your song request, and converts it into a radio signal using the specification (it’s called a 802.11 Protocol) that controls how your Wi-Fi works
2. This information is sent to the router, including your smartphone’s Internet Protocol address (essentially, its internet street address) and the track you requested
3. This is where the Domain Name Server (DNS) comes into play. The main purpose of this platform is to take a text based address (let’s say, http://www.spotify.com) and convert it into a numeric Internet Protocol address
4. The router will then send off the request information to your internet provider, through their proxy and then on to Spotify.com
5. Along this journey from your home to your internet provider to Spotify.com, your request information will “hop” along different routers. Each router will look at where the the requested information has to reach and determine the fastest pathway
6. After going through a range of routers, an agreed connection between your home internet, your iPhone and Spotify will be established. As you can see in the image below, I have used a trace route service from Australian-based company Telstra to Spotify showing 16 routers along the journey
7. Then data will begin to travel between the two devices and you’ll hear the requested song playing through your smartphone.

Trace route from Telstra.net to Spotify.com.
Telstra Internet Direct, Author provided

Explaining the back of your router

Even if you now understand how your router works, the machine itself is covered in mysterious ports and jargon. Here are some to look out for:

Ethernet ports: these exist to enable hard wired networking to the router itself in cases where a Wi-Fi connection is not possible.

SSID: this refers to “Service Set Identifier”, and is an alphanumeric set of characters that act as your Wi-Fi network’s identifier.

Telephone/internet port: this port allows your router to gain a hard wired (RJ-45) connection to the internet, usually through telephone lines.

Routers handle interconnectivity and delivery.
Wikimedia Commons

WPS: this stands for “Wi-Fi Protected Setup”. It allows users faster and easier access to Wi-Fi, because they will not have to enter in the passkey once pushed.

LAN: a “Local Area Network” refers to a grouping of computers and devices being networked together, typically with cables and routers in a singular space – often a university, small company or even just at home.

WAN: when we take a series of geographically distributed LANs and connect them together with routers, this is what we call a “Wide Area Network”. This is useful for larger companies that want to connect all their office locations together.

WLAN: closely related to a LAN, “Wireless Local Area Networks” are LANs whereby users who are on mobile devices can connect through a Wi-Fi connection, allowing complete mobility and thus reducing the need for any cables.

The back of a router.
Timo Schmitt/Flickr, CC BY-NC

Cyber safety with routers

It’s important to protect your router and Wi-Fi network from being compromised.

You should:

• Change your router’s administrator password and make it strong
• change the identifying SSID name so it doesn’t give away any details about the model of your router or who owns it
• ensure encryption is turned on in the router settings: this will ensure the traffic travelling over your network is unreadable
• change the passkey you enter in when connecting to Wi-Fi
• ensure your router’s firmware – the software that’s hard coded into your router – is up to date.

Routers ensure your home and internet service provider can stay connected. Look after your router, and it will (hopefully) look after you.

Nicholas Patterson, Teaching Scholar, Deakin University

This article was originally published on The Conversation. Read the original article.

Shellshock Bash Bug

Uzbekistan: jail terms, large fines, literature destruction follow raid

Uzbekistan has continued short-term jailings of religious minorities, with three Protestant Christians from a registered church being given 15 day jail terms,Forum 18 News Service has learnt.

Three other Protestants – arrested after a raid on the Tashkent church – were each fined 80 times the minimum monthly wage, and two other Protestants were fined five times the minimum monthly wage.

Six computers seized during the raid were ordered to be given to the state, and seized Christian literature ordered destroyed.

"Everyone was shocked at the verdict because the defendants proved in court that they were innocent and there were so many violations of legal procedure," one Protestant told Forum 18.

Unusually the court sat into the evening and the sentences were given at about 10.30 pm local time. Among other recent punishments for "illegal" religious literature, one Baptist has been fined 20 times the monthly minimum wage and his religious literature – including the New Testament – was ordered to be destroyed.

The trial followed a massive 16 May raid on the centrally-located Tashkent church. The court ordered that Christian books confiscated during the raid be destroyed. The church building is sealed.

Report from the Christian Telegraph 

Uzbekistan: arrests in one of the biggest churches

On May 16, 2010 law-enforcement agents of the Republic of Uzbekistan carried out a raid on one of the biggest churches in the country – Tashkent City Church of Christ, reports Christian Telegraph.

During the morning service at 11.00 AM several police officers and agents of the national security service came to the church. Part of them began filming the service, including people’s faces and church offices.

After the end of the service, police officers stopped people, took their passport information and wrote down the names of all children and car identification numbers. During the morning service there were about 500 people, not counting kids.

During several hours police officers and agents of the national security service searched through the church building. They confiscated six computers, a scanner and books, written permissions from parents, who allowed their kids to come to church, and other documents. Police officers also opened up donation boxes.

At about 01.00 PM the raid organizers called representatives of different city services to the church building – sanitary and epidemiological service, fire inspection and tax inspection that in obligatory procedure “found” violations.

Searching and all forms of examinations continued through the whole day. As the result, the second service that had to begin at 04.00 PM was cancelled. The church office was closed and sealed; the panelboard was cut of current.

Soon eight people, ministers and members of the church among them, were taken to Mirso-Ulugbeksk local office of the internal affairs of the city of Tashkent. The assistant pastor Arthur Avanesian was also arrested. Two church members were arrested for filming of what was happening on their mobile phones.

Christians were in custody through the night and were denied to meet with their relatives. On Monday their cases will be submitted to the court for the decision on the merits. As relatives say, they might be under strong pressure to give convenient confessionary statements.

Tashkent City Church of Christ is considered religious organization, which was officially registered in August of 1999. During the time of its existence, the church has never had any admonitions, it led its activity according to the law and had different examinations by state services. The last examination was held by the Department of Justice of the city of Tashkent just two months ago.

All actions by the authority give all reasons to believe that the raid was carried out in order to find reasons to close the church.

Report from the Christian Telegraph 

Iranian Authorities Release Assyrian Pastor on Bail

Accused of ‘converting Muslims,’ church leader faces trial – and threat of murder.

ISTANBUL, April 5 (CDN) — An Assyrian pastor the Iranian government accused of “converting Muslims” has been released from prison on bail and is awaiting trial.

The Rev. Wilson Issavi, 65, was released from Dastgard prison in Isfahan last week. Conflicting reports indicated Issavi was released sometime between Sunday (March 28) and Tuesday morning (March 30).

On Feb. 2, State Security Investigations (SSI) agents arrested Issavi shortly after he finished a house meeting at a friend’s home in Isfahan. Along with the accusation of “converting Muslims,” the pastor is charged with not co-operating with police, presumably for continuing to hold such house meetings after police sealed the Evangelical Church of Kermanshah and ordered him not to reopen it.

After his arrest, Issavi was held at an unmarked prison facility in Isfahan and apparently tortured, according to a Christian woman who fled Iran and knows Issavi and his family. The Christian woman, who requested anonymity for security reasons, said Issavi’s wife, Medline Nazanin, visited the pastor at the unmarked facility. Nazanin said it was obvious Issavi had been tortured, the Christian told Compass.

Issavi’s confinement cells were so filthy he contracted a life-threatening infection, Nazanin told the Christian woman.

“They took him to the hospital and then returned him back to the prison,” the woman said.

Friends of Issavi added that he is still dealing with the lingering effects of the infection.

During Issavi’s imprisonment, authorities threatened to execute him, sources close to the case said. The joy of Issavi’s family at his release was tinged with fear as they waited in agony for the possibility of him being killed by Islamic extremists, as is common in Iran when Christians are detained for religious reasons and then released.

“Sometimes they release you just to kill you,” the Christian source said.

Issavi has not been informed of his trial date.

Issavi’s friend said that low-key ethnic Christians, such as the Assyrians, are largely unbothered for long periods of time. Active Christians are treated differently.

“When you start evangelizing, then you are in real trouble,” she said.

Iranian authorities have set up a video camera outside Issavi’s church to monitor anyone going in or out of the building, according to the pastor’s friend.

Issavi was one of a few Christians in leadership positions arrested in Isfahan in February during what some Middle Eastern experts described as a crackdown on area church leadership.

Isfahan, a city of more than 1.5 million people located 208 miles (335 kilometers) south of Tehran, has been the site of other anti-Christian persecution. In an incident in July 2008, two Christians died as a result of injuries received from police who were breaking up a house meeting.

On Feb. 28, Isfahan resident Hamid Shafiee and his wife Reyhaneh Aghajary, both converts from Islam and house church leaders, were arrested at their home.

Police handcuffed, beat and pepper-sprayed Aghajary and then took her to prison. Her husband Shafiee, who was away from the house when police arrived, was arrested an hour later when he returned to the house. Approximately 20 police officers raided the home, seizing Bibles, CDs, photographs, computers, telephones, personal items and other literature.

The couple is still being held. Other details about their detainment are unknown.

Three Christians Released

Elsewhere, three Christians arrested on Dec. 24, 2009 have been released, according to Farsi Christian News Network (FCNN).

Maryam Jalili, Mitra Zahmati, and Farzan Matin were initially arrested along with 12 other Christians at a home in Varamin. Eventually they were transferred to Tehran’s notorious Evin Prison, though the other 12 prisoners were conditionally released on Jan. 4. 

Jalili, Zahmati and Matin were freed on March 17, though terms of their release were unclear. Jalili is married and has two children.

Iran has a longstanding history of religious repression. Shia Islam is the official state religion and is ensconced as such in Iran’s constitution. Every year since 1999, the U.S. Secretary of State has designated Iran as a “Country of Particular Concern” for its persecution of Christians and other religious minorities.

According to the 2009 International Religious Freedom Report issued by the U.S. Department of State, persecution of Christians and other religious minorities in Iran continued to get significantly worse.

“Christians, particularly evangelicals, continued to be subject to harassment and close surveillance,” the report states. “The government vigilantly enforced its prohibition on proselytizing by closely monitoring the activities of evangelical Christians, discouraging Muslims from entering church premises, closing churches, and arresting Christian converts.”

Report from Compass Direct News 

Iranian Pastor Tortured, Threatened for ‘Converting Muslims’

Arrest, imprisonment appear to be part of larger crackdown in Isfahan.

ISTANBUL, March 8 (CDN) — An Assyrian pastor the Iranian government accused of “converting Muslims” is being tortured in prison and threatened with execution, sources close to the case said.

State Security agents on Feb. 2 arrested the Rev. Wilson Issavi, 65, shortly after he finished a house meeting at a friend’s home in Isfahan. A city of more than 1.5 million people, Isfahan is located 208 miles (335 kilometers) south of Tehran.

According to Farsi Christian News Network, Issavi’s wife, Medline Nazanin, recently visited her husband in prison, where she saw that he had obvious signs of torture and was in poor condition. Iranian intelligence officials told Nazanin that her husband might be executed for his alleged activities.

Issavi is the pastor of The Evangelical Church of Kermanshah in Isfahan, a 50-year-old church body affiliated with The Assemblies of God that caters to the local Assyrian population.

During the raid, State Security police detained everyone in the house, later releasing all but Issavi and the owner of the home. Security officials also seized personal property from the home. Typically in Christian arrests in Iran, security officials confiscate all documents, media materials, computers, and personal documentation.

Issavi is being held in an unmarked prison, according to FCNN.

Last month’s arrest seems to be part of an anti-Christian sweep that is taking place across Isfahan. In addition to the politically motivated detentions and executions that have taken place after June’s contested election and subsequent nation-wide political protests, it appears authorities are rounding up Christian leaders.

More Arrests

On Feb. 28, Isfahan residents Hamid Shafiee and his wife Reyhaneh Aghajary, both converts from Islam and house church leaders, were arrested at their home.

Aghajary was at home with a group of other Christians when police came for her and her husband, who was not at home, according to Middle East Concern, a group that assists persecuted Christians. Police handcuffed Aghajary and, upon finding boxes of Bibles, began beating her.

The assault continued until eventually Aghajary was pepper-sprayed and removed from the scene. Her husband Shafiee was arrested an hour later when he returned to the house.

Their fate and whereabouts are still unknown.

Authorities assaulted another Christian visiting the house at the time of the raid when he protested the police action. Other Christians at the house were threatened, but no one else was arrested. Approximately 20 police officers raided the home, seizing Bibles, CDs, photographs, computers, telephones, personal items and other literature.

One regional analyst, who spoke on the condition of anonymity, said the Iranian government is set on crushing religious freedom within the country.

“The recent spate of church leader arrests provides clear evidence of the Iranian authorities’ desperate determination to strangle the growing church movement, along with all other forms of perceived political dissent,” he said.

February’s arrest was not the first time Shafiee has had run-ins with Iranian authorities. He has routinely been ordered to appear before police for questioning and then released. This arrest, however, was different. When family members contacted police on March 1, they were told that the couple’s case was under the jurisdiction of the Revolutionary Court and were turned away with no other information.

While the couple is imprisoned, family members are caring for their two teenage boys.

Frequent Harassment

Like Shafiee, Issavi has been harassed frequently by the Isfahan branch of the State Security police. He has been ordered to appear before the police many times, then arrested and interrogated. In addition, police have threatened members of his family and have broken into his house and taken items such as his computer.

On Jan. 2, 2010, police sealed the Kermanshah church and ordered Issavi not to reopen it. The church continued to have house meetings, and authorities charged Issavi with not cooperating with the government.

The Assyrians were one of the first ethnic groups in the Middle East to adopt Christianity. The existence of the Assyrian Christian community in Iran predates the existence of their Islamic counterparts by several hundred years. There are 10,000 to 20,000 Assyrian Christians living in Iran, according to unofficial estimates cited in the 2009 International Religious Freedom Report issued by the U.S. Department of State. The total Christian population is 300,000 nationwide, according to the United Nations. Most of those Christians are ethnic Armenians.

Isfahan has been the site of some of the worst religious persecution in Iran. On July 30, 2008, Abbas Amiri, a Christian man in his 60s, died in a hospital after being beaten by Isfahan security police. Authorities had arrested Amiri along with seven other men, six women and two minors during a July 17 raid on a house meeting. Four days after her husband died, Sakineh Rahnama succumbed to her injuries and a stress-related heart attack. Later, officials wouldn’t allow local Christians to hold a memorial service.

Iran, where Shia Islam is the official state religion, is known to be one of the worst countries for repression against Christians. The U.S. Secretary of State has designated Iran as a Country of Particular Concern every year since 1999 for its persecution of non-Shia Muslims, among others.

Last year, according to the International Religious Freedom Report, persecution of Christians and other religious minorities continued to get “significantly worse.” The state department placed the blame for this squarely at the feet of President Mahmoud Ahmadinejad and Iran’s conservative media, who “intensified a campaign against non-Muslim religious minorities, and political and religious leaders” by issuing a continual stream of inflammatory statements.

“Christians, particularly evangelicals, continued to be subject to harassment and close surveillance,” the report states. “The government vigilantly enforced its prohibition on proselytizing by closely monitoring the activities of evangelical Christians, discouraging Muslims from entering church premises, closing churches, and arresting Christian converts.”

Evangelical Christians were required to carry church membership cards and provide photocopies to authorities, according to the report.

“Worshippers were subject to identity checks by authorities posted outside congregation centers,” it states. “The government restricted meetings for evangelical services to Sundays, and church officials were ordered to inform the Ministry of Information and Islamic Guidance before admitting new members.”

Report from Compass Direct News 

Iran Detains Christians without Legal Counsel

Half of those arrested in recent months could face apostasy charges.

ISTANBUL, January 28 (CDN) — At least 14 Christians have been detained in Iranian prisons for weeks without legal counsel in the past few months as last year’s crackdown has continued, sources said.

Three Christians remained in detention at Evin prison after authorities arrested them along with 12 others who had gathered for Christmas celebrations on Dec. 24 in a home 20 kilometers (12 miles) southeast of Iran’s capital, Tehran, according to a source who requested anonymity.

While the others were released on Jan. 4, remaining at Evin prison were Maryam Jalili, Mitra Zahmati and Farzan Matin, according to the source. Jalili is married and has two children.

Matin sounded ill in a short phone conversation this week to his family, the source said.

“Maybe he caught a cold, maybe it’s something else, but for sure they are under heavy pressure,” the source said. “They are not allowed visits from family. It doesn’t seem good.”

Security forces went to the homes of all the detainees and confiscated their books, computers and other literature, according to Farsi Christian News Network. None of the Christians have had access to legal counsel or representation.

“Normally they eventually release them,” said an Iranian source of the Dec. 24 arrests. “They never keep one person forever … but we don’t know when. We are used to living with this kind of government. Therefore we try our best and seek what God will do, and pray that they don’t keep them so long.”

The source said authorities have promised the release of the three Christians arrested Dec. 24 but have yet to let them go.

“They called their families, and they were told they would be released after bail … but then they didn’t [release them],” he said of the three Christians held in Evin.

Within days after the Dec. 24 arrest, Jalili’s sister, Mobina Jalili, and another Christian were arrested in Isfahan. The source said these two have had no contact with their families. The location and conditions of their detainment are unknown. 

Apostasy Charges

In the southwestern city of Shiraz, seven Christians were being detained as of Jan. 11, another source said, and most of them may face charges of apostasy, or leaving Islam.

Family members who have spoken with the arrested Christians said authorities have told the detainees – with the exception of one who was not born a Muslim – that they are guilty of apostasy, the source said.

The names of those detained in Shiraz are Parviz Khaladj, Mehdi Furutan, Roxana Furouyi, Behrouz Sadegh-Khanjani, Abdol Reza Ali Haghnejad, Iman Farzad and one identified only as Mahyar. 

Another Christian in the northern city of Rasht, Davoot Nejatsabet, also has been arrested. And Yousef Nadarkhani, who was arrested last year on Oct. 13 in Rasht, remains in prison.

The source said the government was in crisis with so many of its citizens continuing to openly protest against it, and that this was an opportune moment to lash out against Christians.

“They see that the West is keeping quiet about Christians,” said the source. “But the Christians should mobilize about what is happening.”

Arrested Christians are regularly denied legal counsel. Often Christians are charged with other crimes, such as espionage or disrupting public order, because of their faith. The charged political climate in Iran has made it nearly impossible for Christians to find appropriate defense lawyers they can afford, a source said. Many of Iran’s human rights lawyers have either fled the country, the source said, are in prison or are otherwise unable to take up Christian cases.

Under sharia (Islamic law), apostasy is one of several “crimes” punishable by death, although Islamic court judges are not required to hand down such a sentence. No converts to Christianity have been convicted of apostasy since international pressure forced officials to drop the death sentence of Christian convert Mehdi Dibaj in 1994.

In the years following the convert’s release, however, Dibaj and four other Protestant pastors, including converts and those working with them, have been murdered. The murderers of the Christians have never been brought to justice, and government officials are suspected of playing a role in the killings.

Governmental and non-governmental agencies say that Christian converts are regularly placed under surveillance, arrested, imprisoned without due process and tortured. Muslim-born Iranians who have embraced Christianity are legally prohibited from practicing their newfound faith.

Report from Compass Direct News