Former Senator, astronaut, and current NASA Administrator Bill Nelson went on CNN Sunday to talk about aliens; specifically, the Pentagon’s recently-released report on UFOs. Nelson has read the unclassified version of the document, and he said: “My feeling is that there is clearly something there. It may not necessarily be extraterrestrial, but if it is a technology that some of our adversaries have then we’d better be concerned.”

CNN host Pamela Brown tried to get him to open up. “Not necessarily extraterrestrial but you’re not ruling it out,” she said.

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