In our cover story, David Pogue looks at the increased attention being paid to the investigation of UFOs. Tracy Smith sits down with actor Ewan McGregor, star of the Netflix series "Halston". Mo Rocca visits a Kentucky home for retired racehorses. Ted Koppel talks with attorney Ben Crump about his defense of victims of civil rights abuses and police brutality. Jim Axelrod examines recent controversies involving the U.S. Secret Service; Steve Hartman reports on a war of signs; and Chip Reid talks with entomologists about the once-every-17-years emergence of cicadas, and how their protein can satiate the appetites of predators (and cookie lovers).

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