In secretive chat rooms and on encrypted Internet message boards, al-Qaida fighters have been planning and coordinating attacks, including a threatened plot that U.S. officials say closed 19 diplomatic posts across Africa and the Middle East for more than a week.
Amid online "chatter" about terror threats, U.S. diplomatic posts in 19 cities in the Muslim world will be closed at least through the end of this coming week.
A federal indictment accusing Boston Marathon suspect Dzhokhar Tsarnaev of carrying out the April bombings says the teenager had the information he needed to make explosives with a pressure cooker easily accessible on the Internet in jihadist files.
DETROIT (AP) — A Nigerian who tried to blow up an international flight near Detroit on behalf of al-Qaida has been sentenced to life in prison without parole.
The mandatory punishment Thursday for Umar Farouk Abdulmutallab was never in doubt after he pleaded guilty in October...
WASHINGTON (AP) — The FBI says it has been paying closer attention to people around the country who ascribe to an extremist movement that rejects government activities.
The bureau says there has been an increase in cases in recent years involving so-called sovereign citizens...