ISIS claims Tunisia attack, but offers no proof
Audio message posted to Twitter says 2 "knights of the State of the Caliphate" shot dead 23 people in museum siege
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Audio message posted to Twitter says 2 "knights of the State of the Caliphate" shot dead 23 people in museum siege
Police said to detain 9 people with alleged links to massacre, as reports suggest slain gunmen could have been members of well-known terror group
Feds accuse Tairod Nathan Webster Pugh of plotting to travel to Syria to join terror group
New terrorism law aimed at cracking down at online glorification of terrorism struggles in the implementation phase
The two men, who live in California, were recruited to go to Afghanistan and kill U.S. troops
The social network laid out how it defines hate speech, threats and nudity, including how much buttock is too much buttock
As terror group expands from Middle East to new territory in West Africa, it gets "one of the most important terrorist groups in the world"
The alignment of Nigerian militant group Boko Haram with ISIS is the latest demonstration of the extremist group's growing global clout
Coordinated bombings by Islamic extremists on Britain's biggest transport network leave 52 people dead