It sounds like a Hollywood plot  for a 21st century remake of Earth versus the Flying Saucers.

San Francisco physicist Dr. Jack Sarfatti claims to have heard the rumor while visiting London in 2004, while in the company of Nick Cook, the well known aerospace journalist from the private intelligence publisher Janes Information Group.

"I was asked by the 'CIA' not to pursue the story in 2004, but now Bigelow has (allegedly, it seems) opened Pandora's Box on the story."

Sarfatti came forward with the rumor following a remark made by billionaire space maven Bob Bigelow to the New York Times about the dangers of UFOs:

"People have been killed. People have been hurt. It’s more than observational kind of data."

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