Back to Show
PBS News Hour
Why it’s so hard to fight extremist propaganda online
How do you deter people from being seduced by messages of extremism on social media? Science correspondent Miles O’Brien looks at some of the strategies, including videos that provide a counter-narrative to the Islamic State and a computer program that uses digital signatures to track the movement of images on the internet.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.

57:46
June 17, 2025 - PBS News Hour full episode

57:46
June 16, 2025 - PBS News Hour full episode

26:45
June 15, 2025 - PBS News Weekend full episode

26:45
June 14, 2025 - PBS News Weekend full episode

57:46
June 13, 2025 - PBS News Hour full episode

57:46
June 12, 2025 - PBS News Hour full episode

57:46
June 11, 2025 - PBS News Hour full episode

57:46
June 10, 2025 - PBS News Hour full episode

56:45
June 9, 2025 - PBS News Hour full episode

24:09
June 8, 2025 - PBS News Weekend full episode
24:09
June 7, 2025 - PBS News Weekend full episode

57:46
June 6, 2025 - PBS News Hour full episode