This is payback for the MOAB attack.
So bomb the water supplies in Afghanistan now. Cut off the money they make from well-irrigated opium.
From the story here:
Dressed in military uniforms, a squad of 10 Taliban militants drove in two army Ford Ranger trucks past seven checkpoints. They arrived inside northern Afghanistan’s largest military installation just as hundreds, perhaps thousands, of unarmed soldiers were emerging from Friday Prayers and preparing for lunch.
For the next five hours, the militants went on a rampage, killing at least 140 soldiers and officers in what is emerging as the single deadliest known attack on an Afghan military base in the country’s 16-year war. Some assailants blew themselves up among the soldiers fleeing for their lives, according to survivors, witnesses and officials.