The New York Times collected and analyzed hundreds of videos of a crackdown on anti-government protests that Iranians shared despite an internet blackout. Sanjana Varghese explains how the Visual Investigations team at The Times verified them.The New York Times collected and analyzed hundreds of videos of a crackdown on anti-government protests that Iranians shared despite an internet blackout. Sanjana Varghese explains how the Visual Investigations team at The Times verified them.

