Latest Roswell Theory: UFO Was Russian Craft

Investigative journalist Annie Jacobsen presents a new theory of the Roswell incident in her book Area 51: An Uncensored History of America's Top Secret Military Base: a UFO did crash at Roswell, but it wasn't from outer space.

The world famous Roswell "incident" was no UFO but rather a Russian spacecraft with "grotesque, child-size aviators" developed in human experiments by Nazi doctor and war criminal Josef Mengele, according to a theory floated by investigative journalist Annie Jacobsen.

Her book, "Area 51: An Uncensored History of America's Top Secret Military Base," is about the secretive Nevada base called Area 51. One chapter offers the new Roswell theory, citing an anonymous source who says Joseph Stalin recruited Mengele and sent the craft into U.S. air space in 1947 to spark public hysteria.

Like past theories, Jacobsen writes that the U.S. government was involved in a cover-up of the UFO report, which has spawned space alien legend and turned this southern New Mexico town into a tourist attraction. Read more