The attorney for Briton Gary McKinnon, the biggest US military hacker ever, has said that McKinnon is afraid he will be prosecuted under US anti-terror laws -- which the attorney says could send him to Guantanamo Bay. McKinnon allegedly broke into 97 government computers to try and find evidence the US government knows about UFOs but has been concealing information about extraterrestrial life. His illegal activities allegedly caused around $700,000 of damage. He hacked into the government computers in 14 different states, including U.S. Army, Air Force, Navy, NASA and Pentagon systems. A UK judge previously asked the US government for some sort of reassurance that McKinnon would be charged in federal court and not under any anti-terror laws. District Judge Nicholas Evans will announce the decision whether or not McKinnon will be extradited on May 10. If McKinnon is extradited, unless he has an agreement made with the federal government, anti-terror charges could be filed.