The report has not thwarted all conspiracy theories.
Los Angeles Times writer and author of Area 51: An Uncensored History Annie Jacobson interviewed dozens of former pilots, engineers and spies, and believes U-2 flights and top-secret weapon tests were not the reason for the government's consistent secrecy.
A source told Jacobson that the UFO that landed in Nevada was actually an aircraft from Russia holding 13 year old children who were surgically or genetically deformed. Her source and four other engineers were the recipients of the aircraft.
"After WWII," she writes "Joseph Stalin employed Nazi doctor Joseph Mengele to create alien lookalikes out of human guinea pigs. He then placed them in a round, hovering aircraft and sent them to America hoping to set off a kind of mass panic that came after the War of the Worlds radio scare."
Her source, a 90-year-old man who has chosen not to publicly identify himself, reports that Area 51 was so highly classified because the U.S. government used the deformed children for medical testing and human experiments.