We are constantly told that US drones are surgically precise. But any weapon – especially a remote-controlled one – is only as accurate as the intelligence behind it. At least 38 people died before a CIA strike finally killed this man [al-Qaeda #2, Nasir al-Wuhayshi, in Yemen]. Who were the rest? How many lives did we take in the effort to assassinate al-Wuhayshi? How many have we driven into the arms of militants with the 38 others we killed? The secret drone war conceals a mountain of hidden costs, and the idea we can bomb our way out of the problem of terrorism is short-sighted and, ultimately, false.