With no one immediately claiming responsibility for Friday night’s terror attacks in Paris, intelligence officials will have to piece together myriad clues.
That process could take a while, Michael Leiter, former director of the National Counterterrorism Center, told NBC News.
It’s too early to say if it was Al Qaeda or ISIS or someone else, Leiter said. But it almost certainly will turn out to be some kind of Sunni extremists, he said.
Richard Engel
Jon Schuppe









