I think they are telling the truth, "truth" being defined as that which the speaker honestly believes. Whether or not they are relating FACTS is another matter entirely. I think much of what they relate is influenced by media and prompting. \n\nMany people misunderstand hypnosis, falsely believeing that it is impossible to lie while in a hypnotic trance. Not true! It is not only possible, but quite common. Hypnosis puts a person into a state of mind which makes them highly suseptible to suggestion. The hypnotist has to be extremely careful not to plant a suggestion into the subject's mind, but this still happens anyway.\n\nSo, combining media influences with  hypnotic suggestions, a subject will often fabricate what he believes the hypnotist is asking for. Technically the subject is not "lying", however. He honestly believes he is telling the truth. But in many cases it is only a creation of his mind, intending to satisfy the questioner. \n\nWith all that said, do I believe that some people have actually been abducted? I'm skeptical, but willing to consider SOLID evidence. So far I'm not convinced.