Philip Mudd, a former senior official at the CIA and the FBI, argues in a forthcoming article that the threat of a Sept. 11-style attack has been supplanted by a proliferation of plots by AQAP and other affiliates. "The sheer numbers . . . suggest that one of the plots in the United States will succeed," he writes in the latest issue of CTC Sentinel, a publication of the Combating Terrorism Center at the U.S. Military Academy in West Point, N.Y. In the future, he said, "the Pakistan-Afghanistan border region will not be the sole, or even primary, source of bombing suspects."