Steve Lewis: Previously on Inside the FBI, we looked back at the investigation that led to the arrest of Ted Kaczynski, better known as the Unabomber—one of the nation’s most notorious domestic ...

FBI officials said the 18-year-old was inspired by ISIS and planned to attack a grocery store and restaurant with hammers and ...

Hundreds of guns and a wide variety of drugs were seized in 55 major Kansas City operations as nearly daily arrests were made ...

CHICAGO (WLS) -- Nearly 25% of FBI agents are now working on immigration enforcement, according to numbers provided by the FBI to Sen. Mark Warner's office. But those numbers get even higher when ...

A series of encrypted phone calls – secretly recorded by a confidential FBI source – tipped off federal agents that a group was allegedly planning to carry out a terrorist attack in Michigan on behalf ...

**November 4 Update: Federal authorities charged Mohmed Ali and Majed Mahmoud, both 20, with terrorism-related offenses Monday, November 3, in relation to the alleged attack planned for Halloween ...

Michael German went undercover with white supremacists for a year and with right-wing militants for another eight months and now he wants to set some things straight. “One of the things I learned ...

Internal report shared with Guardian shows FBI has launched cases in 23 regions, some linked to Trump memo on thwarting ‘terroristic activities’ ...

Attorney General Pam Bondi has ordered the FBI to broaden domestic terrorism investigations, expand the Digital Media Tipline ...

A senior FBI official sparked sharp exchanges on Capitol Hill after calling the anti-fascist movement antifa the nation’s most serious domestic terrorism threat, while offering few specifics about the ...