The officials who convicted Kevin Mallory -- who was being investigated for conspiracy to commit espionage -- tell Anderson Cooper how their case came together. Malta -- the The smallest nation in the European Union -- is earning an unsavory reputation. Jon Wertheim reports. The reintroduction of the predator has led to more visitors and a shift in the ecological makeup of Yellowstone Park. Bill Whitaker has the story. Those stories on tonight's "60 Minutes."

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