A new report from a team of British and Pakistani journalists estimates U.S. drone strikes in Pakistan have killed as many as 775 civilians, including 168 children. Overall, the Bureau of Investigative Journalism reports some 2,292 people have died in the drone attacks since 2004. As many as 69 children were killed in the bombing of an Islamic school in 2006. The report also challenges a recent claim by President Obama’s top counterterrorism adviser, John Brennan, that no civilians have been killed in the drone attacks for nearly a year. According to researchers, at least 45 civilians were killed in 10 U.S. attacks during the last year.