Donald Trump spokeswoman says Barack Obama invaded Afghanistan
Omar Mateen probed for terror ties but legally purchased weapons
US releases 9 more Guantanamo detainees
Paris attacks suspect Abrini arrested: Belgian media
Brussels Bombing: New video released showing 'man in white'
France says it foils advanced attack plot
ISIS claims Brussels attacks that kill at least 30
Here's everything we know -- and don't know -- about the Brussels attacks
Belgium detains 2 further suspects over Paris attacks
In Paris, military chiefs vow to intensify ISIS fight
ISIS media outlet confirms 'Jihadi John' is dead: SITE
Behind ISIS attack on Indonesia, homegrown jihadi intellectual
Soldiers and police in Belgium allegedly had an orgy during terror lockdown
2 arrested on suspicion of plotting New Year's Eve attacks in Belgium
The most iconic news photos of 2015
Clinton campaign walks back her claim that Trump was featured in ISIS recruitment videos
Study says attacks on US mosques at 5-year high
Photo shows San Bernardino suspects returning to the US together for the first time
Tashfeen Malik, mom in California rampage, became very devout: Report
San Bernardino shooter was teased about beard, family lawyers say
This map shows how terrorism has spiked across the world over the past year
Obama calls for dismantling IS 'network of death'
'Sovereign Citizens': Mere Tax Dodgers or Real Terrorist Threat?
Health Risks of Full Body Scanners Questioned Following Report