Peter Bergen and Jennifer Rowland try to explain why the US drone campaign in Pakistan appears to be tapering off:
According to senior U.S. counterterrorism officials, al Qaeda's leadership bench has been so thinned by the drone campaign that there are only two real leaders of the organization left: bin Laden's successor as overall leader of the group, Ayman al-Zawahiri, and Abu Yahya al-Libi. This raises an interesting question: Maybe one of the reasons that the drone campaign has eased off in the past several months is that the CIA has begun to run out of real targets?
The Dish 
