If true, this only demonstrates that hostility to the American military occupation is so widespread and deep among the Afghan population that any incident can provide the spark to provoke violent resistance. This is the case after ten years and $43 billion devoted by the US military to training an Afghan military and police force to do its bidding.
The US debacle in Afghanistan
I was talking to a colleague at work today about the US relationship to the mujahideen which was the precursor to al Qaeda. The CIA provided Stinger missiles to Osama bin Laden and the mujahideen to fight the Soviet invasion. Even back in the 1980s, Osama bin Laden was based in Pakistan and not Afghanistan so why did we spend the billions to hunt him in the wrong country?
American and NATO troops need to be pulled out. Their purpose ended with Osama bin Laden's death. The continued military presence is only resulting in resentment and continued attacks against our troops.