40,000 fleeing Aleppo as battle for Syrian city intensifies, U.N. group says
The battle for Aleppo -- once Syria's commercial heart -- is intensifying, and video has surfaced appearing to show thousands of civilians streaming out of the devastated city.
Twitter goes to war against ISIS
Twitter has significantly ramped up its anti-ISIS efforts by shutting down thousands of terrorists' accounts and adding staff to monitor terrorist activity on its network.
Al Qaeda group says it holds two Australians
An al Qaeda linked militant group claims it is holding an Australian doctor and his wife who were abducted last month in Burkina Faso.
CNN's Democratic town hall: Live updates
From CNN’s Dan Merica: Clinton picks up endorsement from O’Malley aide
Terror threat in Europe 'as high as it's ever been,' officials say
The terror threat in Europe is at as high a level as it's ever been, a U.S. official told CNN Wednesday, and nearly 2,000 foreign fighters who went to Iraq and Syria from Europe have returned home -- with some potentially plotting new attacks.
Brazil President on Zika: Victory depends on our determination
Brazil's President Dilma Rousseff urged Brazilians on Wednesday to fight the spread of the Zika virus.
Bill Cosby case: Judge says prosecution can go forward
The sexual assault case in Pennsylvania against Bill Cosby will go forward, a judge in Montgomery County ruled Wednesday.
First on CNN: U.S. investigators find proof of cyberattack on Ukraine power grid
U.S. investigators have found evidence to confirm what is believed to be the first-of-its-kind cyberattack on a power grid that caused a blackout for hundreds of thousands of people in Ukraine in December.
Zika has been sexually transmitted in Texas, CDC confirms
Zika has been sexually transmitted in Texas, the Centers for Disease Control and Prevention said Tuesday. It is the first known case of the virus being locally acquired in the continental United States in the current outbreak.
Who is Ted Cruz?
Texas Sen. Ted Cruz secured a victory in Monday night's GOP presidential Iowa caucuses, snatching the win from Donald Trump, who had been leading polls there as recently as Saturday. But it's not the first time Cruz has defied expectations.
