France's parliament was set to vote on extending its military operations in Iraq as part of the U.S.-led coalition against ISIS.
The threat, aimed at France, comes a day before Charlie Hebdo is set to publish its latest issue, featuring the Prophet Muhammad.
Boumeddiene has multiple options for avoiding detection if she's in Syria.
The U.S. Central Command's Twitter account is back online but its YouTube account has been terminated.
The feeling of solidarity against terrorism may be short-lived as fear of backlash grows.
Francis also called for a concrete, international response to the spread of religious extremism in the Middle East.
If confirmed, this would make it the single worst case of civilian casualties since the airstrikes in Syria began in September.
An attack like the one in Paris last week could happen in the U.S., according to Sen. Dianne Feinstein.
The social-media titan says he was threatened by a Pakistani extremist over Facebook's refusal to ban content on the Prophet Muhammad.
Amedy Coulibaly's sister and mother asked people not to think of his acts as representative of Islam.
The fighters appear to be led by Shahidullah Shahid, a former representative of the Pakistani Taliban.
A majority of the latest strikes by coalition forces have targeted the city of Kobani.
Hezbollah's leader says hard-line Sunni groups caused more damage than people who drew cartoons mocking Islam's Prophet Muhammad.
Twins Ashton Carleton Larmond and Carlos Larmond were arrested in Ottawa and at a Montreal airport. Two others were apprehended in Sydney.
Prosecutors have recommended that Attorney General Eric Holder bring felony charges against retired Gen. David Petraeus.
The hostage situation at a kosher supermarket Friday is among hundreds of anti-Semitic incidents in France in recent years.
If al Qaeda is behind the shootings, it could signal more attacks on Western targets, but it wouldn't necessarily mean the terrorism group is making a major comeback.
Amedy Coulibaly, who killed four people at a kosher market on Friday, had tried to break two Islamist militants out of jail.
Shortly before being killed by special forces, one of the Charlie Hebdo attackers spoke to a reporter.
Al Qaeda militants in Syria are plotting attacks to inflict mass casualties in the West, possibly against transport systems or "iconic targets", the head of Britain's MI5 Security Service said on Thursday.
About 7,300 Nigerians fled to Chad this week in the wake of attacks by the Islamist militant group Boko Haram that reportedly killed 2,000.
Militants in Libya who claimed allegiance to the Islamic State group said they executed two journalists kidnapped in September.