( CNN ) -- U.S. airstrikes in Afghanistan killed 30 Afghan civilians , U.S. says . The United States has carried out more than 100 air strikes against suspected Taliban and al Qaeda targets since the start of this year. Civilian casualties politically sensitive for government of President Karzai .
U.S. airstrikes in Afghanistan killed 30 Afghan civilians , U.S. says . The United States has carried out more than 100 air strikes against suspected Taliban and al Qaeda targets since the start of this year. Civilian casualties politically sensitive for government of President Karzai .