But the situation will be even more dangerous than Coll suggests. Long before a faculty lounge in Islamabad or Riyadh realizes it can build a bomb alone and secretly, the same thought will have occurred to individuals in Tel Aviv, New Delhi or Palo Alto. Any Islamic group that believes it can attack New York deniably should convince itself that no similar group can nuke Mecca at the height of the pilgrim season. In fact, the whole problem that Coll describes should be generalized. The only thing worse than discovering that New York has been destroyed by persons unknown is to find that Islamabad has been vaporized by a group we’ve never heard of.