It's a stark acknowledgment of the national security threat that officials see as posed by American extremists motivated to violence by radical ideology.
The agency says the internet has become a breeding ground for domestic terrorism, following hate-based mass shootings in the U.S.
As other Western democracies take steps to prevent violent far-right extremism, the Trump administration is moving backward.
The mass shooting in El Paso "underscores the continued threat posed by domestic violent extremists and perpetrators of hate crimes," the FBI said in a statement.
Other governments and tech companies are reportedly supporting the call to action following the shootings at New Zealand mosques earlier this year.
People searching online for violent extremist content in Texas are mostly young, male and neo-Nazi-inclined.
What is ISIS saying? The first element to understand the political and social strategy of ISIS is getting to know what topics the terrorists are using to seduce their audiences.
Why do thousands of people, especially young men, join or support violent organizations, especially those like ISIS -- and how do we stem this tide?