Here's a tragic example of NATO doing more harm than good in Afghanistan. Two young brothers collecting firewood were accidentally killed by fire from a NATO hellicopter, officals confirmed Saturday. The two boys, Toor Jan, 11, and Andul Wodood, 12, were walking their donkeys when the hellicopter opened fire on them, supposedly thinking they were insurgent forces. “I offer my personal apology and condolences to the family of the boys who were killed,” General Dunford said. “We take full responsibility for this tragedy.” The episode is the second airstike to accidentally kill civilians in Afghanistan since Dunford took command in February.