I saw this last night, and it was really funny when Kimmel asked him if Clinton would tell us if there were aliens:

The former United States president appeared on Wednesday’s episode of “Jimmy Kimmel Live.” He ended up discussing, among other things, extraterrestrial life.

Clinton admitted that soon after becoming president, he had his aides research Area 51, the Nevada military facility, “to make sure there was no alien down there.” He was also interested in Roswell, N.M., the site of a reputed UFO sighting in 1947, which was celebrating its 50th anniversary during Clinton’s presidency.

“I had all the Roswell papers reviewed – everything,” he told Kimmel.

“If you saw that there were aliens there, would you tell us?” Kimmel asked.

“Yeah,” Clinton said, nodding.

Given the size of the universe, and the continued discovery of new planets, Clinton believes we’re not alone.

“If we were visited someday I wouldn’t be surprised,” Clinton said. “I just hope it’s not like ‘Independence Day.’”