And also of proving yourself as a man of action," said Brian Fishman, who studies terrorism at the New America Foundation in Washington. Fishman cautioned that it was too early to draw any firm conclusions about the Tsarnaev brothers, but he said there ...

The point was well made week by Philip Mudd, a former counterterrorism expert with the FBI and CIA. He told a National Public Radio panel discussion: ''Today, indisputably, not only are we winning, but al-Qaeda is almost destroyed and the revolution is ...

"This looks to me like a closed cell," says Philip Mudd, CIA's Counterterrorist Center, discussing whether or not there are likely others involved in the Boston bombing. 8:40 a.m. ET — Philip Mudd, former deputy director of CIA's Counter-terrorist Center.

Douglas Ollivant, a senior national security studies fellow at the New America Foundation, attributes the rising death toll to Al-Qaeda and its local affiliates in Iraq regaining lost ground. This is especially notable, he says, in the western desert ...