In 2002, Gary McKinnon was arrested by the UK's national high-tech crime unit, after being accused of hacking into Nasa and the US military computer networks. He says he spent two years looking for photographic evidence of alien spacecraft and advanced power technology. America now wants to put him on trial. He could face 60 years behind bars. Spencer Kelly: You hacked into the Army, the Navy, the Air Force, the Department of Defense, and Nasa. Why? McKinnon: I was in search of suppressed technology...UFO technology. Secretive parts of the secret government are sitting on suppressed technology for free energy. SK: Did you find what you were looking for? GM: Yes. There was a group called the Disclosure Project. They published a book which had 400 expert witnesses ranging from civilian air traffic controllers, through military radar operators, right up to the chaps who were responsible for whether or not to launch nuclear missiles. They are some very credible, relied upon people [saying] we've captured spacecraft and reverse-engineered [them]...What came on to the screen was amazing. It was a culmination of all my efforts. It was a picture of something that definitely wasn't man-made. It was above the Earth's hemisphere. It was cigar-shaped and had geodesic domes above, below, to the left, the right and both ends of it.