Afghan insurgent group Hizb-e-Islami claimed responsibility for the attack, saying it plans further attacks against foreign troops.
The lives of four Afghans provide a lens on how America's longest conflict has changed a nation – and the divisions and dangers that persist.
As French President Hollande promises troop withdrawal this year, and the rest of NATO plans to exit by 2014, Afghanistan's best hope may be the disunity and ill-discipline of the Taliban.
NATO bombardment of Pakistani military post has pushed US-Pakistani relationship to new low. That's the bad news. It's also fodder for some great news reporting.
The Taliban claim responsibility for recent Kabul attacks, but the US pins blame specifically on the Pakistan-based Haqqani network in what some see as a bid to salvage Taliban peace talks.
Afghanistan saw an uptick of violence as Afghan President Karzai announced that the US and the Taliban are, indeed, meeting.
Even before Osama bin Laden's killing, the Taliban were softening their image while the US, Pakistan, and Afghanistan set the stage for talks. Now the US must decide if it's worth years of further military and diplomatic effort to hammer out an agreement.