The extradition treaty between the United States and Great Britain was concluded in 2003 and ratified by the United States in 2007. The treaty has been strongly criticized in Britain since the U.S. requested the extradition of Gary McKinnon, accused of hacking into U.S. government computers to confirm his belief that Washington was withholding information that proves, among other things, the existence of unidenti­fied flying objects, the U.S.’s refusal to publicize the antigravity technology it acquired from the UFOs, and a 9/11 conspiracy. But the treaty serves the interests of both nations in creating a system of extradition that respects their sovereignty and their mutual need to ensure that those accused of serious crimes in one country do not find refuge in the other.