An in-depth, field-based investigation by the Bureau of Investigative Journalism (on behalf of the UK’s Sunday Times) found in February that “since Obama took office three years ago, between 282 and 535 civilians have been credibly reported as killed including more than 60 children.” The bureau notes that the drone attacks were started under the Bush administration in 2004 and have stepped up significantly under Obama. There had been 260 strikes by unmanned Predators or Reapers in Pakistan under Obama’s administration—averaging one every four days.
The report echoes the July 2009 estimates of Daniel L. Byman, senior fellow at the Saban Center for Middle East Policy: “Sourcing on civilian deaths is weak and the numbers are often exaggerated, but more than 600 civilians are likely to have died from the attacks. That number suggests that for every militant killed, 10 or so civilians also died.”
The bureau reported another aspect of the drone attacks that is perhaps just as alarming as the raw numbers of innocent people they slaughter: it found that U.S. unmanned aircraft had killed dozens of civilians who had rushed to help other victims. A three-month investigation including eyewitness reports indicates that at least 50 civilians were killed in follow-up strikes when they had gone to the aid of others.
Quote from Ximena Ortiz, writing in The American Conservative here.