For decades, one of the biggest questions fueling conspiracy theories has been: is the U.S. government hiding secret knowledge of extraterrestrial life? But when the Pentagon started investigating, it uncovered a different kind of coverup. WSJ's Joel Schectman reports on what's in that investigation, and what the government ultimately decided to leave out of it. Jessica Mendoza hosts.
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- How a Balloon Burst U.S.-China Relations
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