Ufos come from the future

UFOs, four letters that unleash passions, embarrass authorities, baffle scientists and amuse skeptics. For almost eighty years now, these stealthy, enigmatic phenomena have been a regular feature of the news, playing with our fighter planes and disappearing without any serious contact being made. Worse still, despite hundreds of thousands of witnesses worldwide, no significant progress has been made in solving the enigma of their nature and origin. The author's hypothesis is that UFOs do no...