Understanding the human body is a team effort. That's where the Yachtel group comes in.

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This is 60-second science. I'm Tulika Bose.

Iranians have been fiercely and relentlessly protesting against their government.

This was sparked by the death of a 22-year-old Kurdish woman named Masa Amini who died in the custody of the country's

morality police. The demonstrations have been led by young women who refuse to accept

restrictive laws like hijab requirements, but authorities have been cracking down with violence

arrests and with surveillance. I'm here with Sophie Bushwick, our tech editor at Scientific American.

Sophie interviewed Amir Rashidi, who is the director of digital rights and security at

Mejan Group in Austin, Texas-based advocacy organization, working to improve human rights in Iran.

Hey, Sophie.

Hi.

Sophie, so how did you find the story? I had heard that some protesters in

Iran were worried about the government using facial recognition. And I reached out to Amir to just

ask him about this technology in particular. But what I learned is that the use of technology

for suppression in Iran goes way beyond facial recognition.

And in fact, the government is actively trying to create its own nationwide intranet

that would be separate from the global internet and allow it to maintain much stricter control

over what its citizens can see on the internet.

...