Afghans gather at the scene of an attack on a presidential adviser in Jalalabad, Afghanistan, on Aug. 2. CIA Director Leon Panetta said fewer than 100 al Qaeda operatives remain in Afghanistan, a number officials hope will restore American optimism in the ongoing war. (Associated Press)

Afghans gather at the scene of an attack on a presidential adviser in Jalalabad, Afghanistan, on Aug. 2. CIA Director Leon Panetta said fewer than 100 al Qaeda operatives remain in Afghanistan, a number officials hope will restore American optimism in the ongoing war. (Associated Press)