There have been too many eye witness accounts over the years for this just to be a hoax. Also many strange discoveries have been made in connection with these accounts. Finally science has even proved many of these claims are entirely possible, and even true in some cases. This large amount of evidence can only mean that aliens are visiting earth and studying humankind.
Every year hundreds of people worldwide report being abducted by aliens. Many report witnessing a similar series of events. Victims first see a bright white light then find themselves rising from their beds. Suddenly they go unconscious and awaken on a table surrounded by strange creatures; they are studied and examined, then returned to their beds. The number of identical accounts cannot be just a coincidence, therefore it offers proof that alien abductions do occur.
Alien abductions do not occur without a trace, in fact over the years a large amount of evidence has been collected. Cows and other livestock are sometimes found dead, with no apparent injuries; however they are missing all internal organs and blood. No known animal can cause such damage, and even if they could they would leave some sign of injury. This leads us to believe that it was an alien abduction, and in fact all attacks like this occur in areas with recent UFO sightings. A few people even claim that they have seen UFO's abduct livestock, and then return to Earth dead and dry.
Finally, science has proved that many eye witness accounts of alien abductions are in fact valid. The most famous of these cases was the story of Betty and Barney Hill. Early in the morning of September 20th 1961, Betty, and Barney Hill were driving along a New Hampshire highway when they saw a strange light in the sky. After following it for some time they stopped the car and saw the strange light descend. Suddenly their minds went blank, they awoke 2 hours later, yet they were only a 20 minute drive from where they were. A few weeks later Betty Hill started to get nightmares of being examined by aliens.
She began seeing a psychiatrist, and while there drew a star map of where the aliens had come from. In 1973 scientists discovered a star cluster that exactly matched Betty Hill's hand drawn star map. This is just further proof that alien abductions do occur in real life.
Alien abductions happen too regularly, to too many people, for it to just be a hoax. Many reliable records and eye witness accounts of abductions exist, a large amount of unusual evidence has been found, and science has found that some aspects of abduction are true. I think it is just a matter of time before we realize that aliens are real, and that we have been to foolish to notice their presence.