Bruce Riedel grades al-Zawahiri's first 100 days as al-Qaeda chief:
Al Qaeda is under a great deal of pressure in Pakistan, where Zawahiri is presumably hiding out. But he is not showing much sign of it. His pace of activity is close to an all-time high, and he is trying hard to catch up with the changes in his homeland and the rest of Arabia. It is safe to assume that behind the scenes, al Qaeda is also trying hard to hit back at America. It is way too soon to be writing al Qaeda’s obituary.
The Dish 