Last updated at 4:39 PM on 29th July 2010

Ufology is a faith that includes many beliefs, from the oddly popular one about Nazi aliens who live under the ground to David Icke's contention that the Duke of Edinburgh is in fact a shape-changing, blood-sucking alien lizard.
But here's the core of the faith - that some UFO sightings and encounters are real, the U.S. government knows all about these extraterrestrial visitations, and they've mounted a huge conspiracy to keep the aliens secret and us in the dark.
This book threatens to demolish that faith. Because here Mark Pilkington sets out to prove that the U.S. government really has been conducting a top-secret UFO conspiracy - only one designed not to hide UFOs but publicise them, fuelling and even creating the major UFO myths. Flying saucers, alien abductions, crash-landed spacecraft, secret underground bases in New Mexico - they were all created by the U.S. government.