Families of Americans killed by ISIS are suing Twitter for allegedly providing 'tremendous utility and value' to the terrorist organization
Brother of San Bernardino shooter arrested with two others
Boko Haram's Chibok girls shown alive in 1st footage since kidnapping in 2014
CIA Director Brennan says world has more terrorists, but US safer
The NYPD warned Dutch authorities about Brussels terrorist brothers days before attacks
Brussels attacks 'suspect' Faycal Cheffou freed due to lack of evidence
Paper: Brussels attackers were targeting nuclear plant, changed their minds
Surviving Paris attacks suspect wants to return to 'explain himself': Lawyer
London police preparing for chance of 10 coordinated terror attacks
Parisians express relief, want justice after Abdeslam arrest
New York man gets record sentence for aiding ISIS
2 women risked their lives to capture this chilling footage of life inside the capital of ISIS
ISIS using birth control to keep supply of sex slaves: NY Times
Leaked ISIS personnel files paint picture of group's recruits
New ISIS leader in Libya says group 'stronger every day'
GOP senator unloads: 'Apple chose to protect a dead ISIS terrorist's privacy over the security of the American people'
Apple opposes order to help unlock Calif. shooter's phone
Obama, in mosque visit, says an attack on Islam is an attack on all faiths
US-led airstrikes have cut ISIS oil revenues: US military
Militant in ISIS video believed to be British bouncy castle salesman
Britain denounces ISIS video showing 'spies' shot
Rubio: Trump is 'not the cause of radical jihadists'
ISIS is steadily gaining strength in another Middle Eastern country while everyone looks the other way
Hillary Clinton unveils plan to stop spread of ISIS
NBC/WSJ poll: Terror fears reshape 2016 landscape
Search for shooters' hard drive concludes in California lake
US probing California shooters' financial transfers: Sources
Obama: Terror threat against US has entered 'new phase'
Americans stock up on weapons after California shooting
San Bernardino shooter was teased about beard, family lawyers say