Afghan Employee of USA Kills American at CIA Office in Kabul

It has happened again. An Afghan supposedly working with the Americans who helped liberate his nation from the Taliban now turns on his supposed allies:

It also lies at the heart of the capital's heavily guarded military, political and diplomatic district, a virtual "green zone" that is almost impossible for ordinary Afghans to enter.

It was not clear if the U.S. citizens were victims of a rogue employee who had been won over to the insurgent cause, or just the escalation of an argument in a city where tensions are high and many people carry guns. There are precedents for both.

I can't conceive of a more demoralizing situation. And it just keeps happening. From the Afghan President on down, there needs to be swift and complete condemnation of this betrayal.