The Obama administration is again allowing the CIA to use drone strikes to secretly kill people that the spy agency does not know the identities of in multiple countries - despite repeated statements to the contrary. Apparently the drone operators didn't even know at the time who they were aiming at - only that they thought the target was possibly a terrorist hideout. It's what's known as a "signature" strike. Signature strikes has led to scores of civilians being killed over the past decade, including two completely innocent hostages ... one of whom was a US citizen ... less than two months ago. It's a way of killing that's been roundly condemned by human rights organizations and that some members of Congress have tried to outlaw. Here's how the New York Times described it: "The joke was that when the CIA sees "three guys doing jumping jacks," the agency thinks it is a terrorist training camp, said one senior official. Men loading a truck with fertilizer could be bombmakers but they might also be farmers." It has become increasingly clear that the "rules" are virtually meaningless. As is typical with the US government's extrajudicial killing policy, there was no public debate about any of the changes to the supposed rules, or even announcement that they ever changed - only an unofficial leak to a journalist after the latest killing. Beyond the enormous human rights consequences related to such a dangerous policy, these types of strikes backfire on the United States, sowing hatred in the populations of bombed countries and breeding sympathy for al-Qaida where there was none before.