Tech giants in the United States have pledged to fight online extremism by removing more violent content and promoting media literacy among young users, as part of a summit at the White House.
For example, YouTube said it would expand its extremism policies to remove content that glorifies violent acts.
The video streaming site already prohibits incitement to violence, but videos promoting militia members involved in the January 6 storming of the US Capitol show flaws in its policies, according to US media.
In a report published in May, the Tech Transparency Project information center said it had detected 435 pro-militia videos on YouTube, including 85 posted since the January 6 attack. Some of these videos offered training tips, including how to conduct guerrilla-style ambushes.
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YouTube has also announced plans to launch a media literacy campaign to teach young people how to spot manipulative tactics used to spread misinformation.
Microsoft has said it will make a more affordable basic version of its tools available to schools and small organizations to help them prevent violence.
Meta announced that he would partner with researchers from the Center on Terrorism, Extremism and Counterterrorism at the Middlebury Institute of International Studies.
These platforms have come under fire for years for allowing hate speech, misinformation and violent rhetoric to thrive on their services.
On Thursday, US President Joe Biden called on Americans to fight racism and extremism during a summit at the White House.