NATO’s senior commander in northern Afghanistan has met survivors of yesterday’s fatal air strike in Kunduz. Rear Admiral Greg Smith’s visit came as NATO launched an inquiry into the attack which killed at least 90 people and undermined attempts to win hearts and minds.“We really need to discover what happened, what people were there, what local villages might have been affected by this,” said Smith. “So we are trying to learn and understand. We are listening.” Two fuel tankers seized by the Taliban were completely destroyed when US warplanes attacked. The hijackers perished, but so did dozens of local villagers nearby. It is thought they were siphoning off fuel when the bombs exploded; some of the bodies were too badly burned to be identified. The incident has outraged Afghans and provoked a storm of international criticism. NATO’s overall commander in Afghanistan, General Stanley McChrystal, has demanded his troops take more care to protect civilians before opening fire. He has pledged to make the outcome of the investigation public.