Roswell, JFK: Why some people want to believe in conspiracy theories

Harvard Professor Cass Sunstein shares his insights into the latest evidence into the search for extraterrestrial life in the universe, after video was released by the Pentagon.

He’s sceptical about alien life though, having investigated the Roswell incident himself.

He went on to explain that human nature is to look for patterns for comfort, even where they may not exist.

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