Lesley Stahl asks Aleksandr Kogan, who harvested data of unwitting Facebook users and sold it to Cambridge Analytica, about accusations that he is a spy

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"60 Minutes," the most successful television broadcast in history. Offering hard-hitting investigative reports, interviews, feature segments and profiles of people in the news, the broadcast began in 1968 and is still a hit, 50 seasons later, regularly making Nielsen's Top 10. "60 Minutes" has won more Emmy Awards than any other primetime broadcast, including a special Lifetime Achievement Emmy. It has also won every major broadcast journalism award over its tenure, including 20 Peabody and 18 DuPont Columbia University awards for excellence in television broadcasting. Other distinguished awards won multiple times include the George Polk, RTNDA Edward R. Murrow, Investigative Reporters and Editors, RFK Journalism, Sigma Delta Chi and Gerald Loeb Awards for Distinguished Business and Financial Reporting. "60 Minutes" premiered on CBS Sept. 24, 1968. Jeff Fager is the program's executive producer. The correspondents and contributors of "60 Minutes" are Bill Whitaker, Steve Kroft, Lara Logan, Scott Pelley, Lesley Stahl, Anderson Cooper, Sharyn Alfonsi, Jon Wertheim, Norah O'Donnell and Oprah Winfrey. "60 Minutes" airs Sundays at 7 p.m. ET/PT. Check your local listings.

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