The Pentagon says two Islamic State group members were killed in a drone strike in eastern Afghanistan, not one as initially reported.
Homeland Security has issued a terrorism alert ahead of the 20th anniversary of 9/11.
Crew members aboard Delta flight 386 out of Los Angeles on Friday are credited for saving the aircraft from a man who allegedly tried to breach the cockpit and the FBI is now investigating.
The Department of Homeland Security says violent extremists may seek to exploit the easing of COVID-19-related restrictions across the United States to conduct attacks.
Secretary of Homeland Security Alejandro Mayorkas plans to put a team together to begin an internal review of the Department of Homeland Security for possible threats of domestic violent extremism within the agency.
The couple planned to travel to Yemen aboard a cargo ship in an attempt to stay away from law enforcement, according to a federal prosecutor.
The victims of the 2019 shooting at Naval Air Station Pensacola are suing Saudi Arabia, claiming the kingdom knew the gunman had been radicalized.
Investigators say someone took over a computer that controls the city of Oldsmar’s water system and tried to poison the water supply. The FBI, Secret Service and Pinellas deputies are now looking into the case.
Federal prosecutors say a Northern California man has been charged with stockpiling weapons, including pipe bombs, and the FBI said he sent texts that could be seen as threats against the governor's office.
President Joe Biden has directed law enforcement and intelligence officials in his administration to study the threat of domestic violent extremism in the United States, an undertaking being launched weeks after a mob of insurgents loyal to Donald Trump stormed the U.S. Capitol.
A U.S. Army soldier was arrested Tuesday in Georgia on terrorism charges after he spoke online about plots to blow up New York City’s 9/11 Memorial and other landmarks and attack U.S. soldiers in the Middle East, authorities said Tuesday.
Secretary of State Mike Pompeo says the United States has designated Cuba as a "state sponsor of terrorism."
Tsarnaev alleges his cap and bandana were confiscated by prison guards "because, by wearing it, I was ‘disrespecting’ the FBI and the victims" of the April 15, 2013, bombing.
Prior to his death, the man who detonated a Christmas Day bomb in downtown Nashville had sent out materials about his views to people he knew, federal investigators said Saturday.
Prior to his death in the blast, the man who detonated a Christmas Day bomb had sent people materials about his views, federal investigators said.
The members of the Yemeni government’s newly formed Cabinet, including Prime Minister Maeen Abdulmalik Saeed, were greeted with a loud explosion soon after its plane landed Wednesday in the city of Aden, in what an official is calling a "cowardly terrorist attack carried out by the Iranian-backed Houthi militia."
President-elect Joe Biden is warning of massive damage done to the national security apparatus by the Trump administration and “roadblocks” in communication could undermine Americans’ security.
The man accused of exploding a bomb in Nashville on Christmas told a neighbor days earlier that "Nashville and the world is never going to forget me."
A Los Angeles entertainment executive reportedly received two houses in Tennessee free of charge from the man authorities say was responsible for the Christmas Day bombing in downtown Nashville.
AT&T will waive data overage charges for wireless for it wireless and prepaid customers who may have been affected by the explosion near the telecommunications giant's central office in Nashville on Christmas Day.