American commanders surprized by Karzai request to scale down strikes ...

"... To American commanders, the nighttime strike missions are a crucial weapon to capture Taliban commanders, disrupt bomb-making networks and weaken the 30,000-man insurgency in Afghanistan. In the past three months, U.S. Special Operations troops have killed or captured 368 insurgent leaders. On each mission, Afghan commandos accompany U.S. troops and Afghan officers work with the Special Operations command at Bagram Airfield to choose targets, military officials said.
"We understand President Karzai's concerns, but we would not be as far along as we are pressuring the network had it not been for these very precision operations we do at night," the NATO military official said. "I don't see any near-term alternative to this kind of operation..."