Some polls have suggested that as many as 50 percent of Americans believe UFOs of extraterrestrial origin have visited Earth, and the percentage appears to be higher among Democratic voters. So perhaps Hillary Clinton was playing to her voters Thursday night when she appeared on Jimmy Kimmel's late night talk show on ABC.

In comments first reported by the Daily Caller, Kimmel mentioned the first thing he would do as president would be to rifle through the Area 51 files with the aim of finding out what the government knows about aliens. He also mentioned he'd asked Bill Clinton about that, and the 42nd president said he had looked and didn't find anything.

"Well, I'm going to do it again," Hillary Clinton said. "I would like us to go into those files and hopefully make as much of that public as possible. If there's nothing there then let's let people know there's nothing there." What if there is something there? "If there is something there, unless it's a threat to national security, I think we ought to share it with the public."

It would come as little surprise that there's nothing particularly interesting to see regarding aliens in the Area 51 documents. The government created the facility in southern Nevada for the secret testing of U-2 spy planes, not the housing of aliens as popularized in Ufology.