In a recent public hearing, three government officials told Congress that not only are “unidentified anomalous phenomena” real, they’re a major national security concern. But one witness took his testimony even further, claiming the government possesses materials of “non-human origin.” How much do we really know about UAPs – or, as they’re more commonly known, UFOs? And now that Congress is involved, are we about to learn a whole lot more?

Guest: Garrett Graff, contributor at WIRED magazine; author of the forthcoming book, “UFO: The Inside Story of the US Government's Search for Alien Life Here—and Out There”

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Podcast production by Elena Schwartz, Paige Osburn, Anna Phillips, Madeline Ducharme and Rob Gunther.

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What Next: Congress Wants to Know: Do Aliens Exist? 29:47 Share

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What Next: Congress Wants to Know: Do Aliens Exist?