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http://en.wikipedia.org/wiki/Alien_abductionWhile few mainstream scientists believe the phenomenon literally occurs as reported—some experts contend the field is rife with kooks and pseudoscience—there is little doubt that many apparently stable and sincere persons report alien abductions they believe are utterly genuine: as reported in the Harvard University Gazette in 1992, Dr. John Edward Mack investigated over 60 claimed abductees, and "spent countless therapeutic hours with these individuals only to find that what struck him was the 'ordinariness' of the population, including a restaurant owner, several secretaries, a prison guard, college students, a university administrator, and several homemakers ... 'The majority of abductees do not appear to be deluded, confabulating, lying, self-dramatizing, or suffering from a clear mental illness,' he maintained. He has encountered only one person who showed psychotic features." [1]
Stigma and self-doubt may be obstacles to more widespread study and/or reporting of the phenomenon, whatever its origins or explanation.
Some abduction reports are quite detailed. An entire subculture has developed around the subject, with support groups and a detailed mythos explaining the reasons for abductions: The various aliens (Greys, Reptilians, "Nordics" and so on) are said to have specific roles, origins, and motivations. Abduction claimants do not always attempt to explain the phenomenon, but some take independent research interest in it themselves, and explain the lack of greater awareness of Alien Abduction as the result of either extraterrestrial or governmental interest in cover-up.
Others still are intrigued by the entire phenomenon, but hesitate in making any definitive conclusions. Emergency room physician Dr. John G. Miller asks "How can a person have any firmly held belief about this when it's so mysterious? The opinions of the true believers are hard to swallow; and the opinions of the die-hard skeptics are not based on reality either. There is some middle ground ... It's clear that this is some sort of powerful subjective experience. But I do not know what the objective reality is. It's as if the evidence leads us in both directions."
I can answer this one! It is happening in objective reality!