British officials complained to U.S. diplomats about secret American spy flights using foreign U.K. airbases, fearing that the data collected during those missions could implicate their country in potential human rights violations, according to secret diplomatic memos released by WikiLeaks. The British officials demanded from American diplomats that all such flights in the future be cleared by London, according to the cables sent by U.S. Embassy in London in 2008, and which were released by WikiLeaks on Wednesday. American officials dismissed the British concerns and demands as burdensome and obstructive to counterterrorism efforts, the cables showed.