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Details emerge on plots behind Taylor Swift cancellations
5m 45s
Taylor Swift’s concerts in Austria were called off after officials arrested two teenagers accused of plotting a terrorist attack. Roughly 200,000 people were scheduled to attend the sold-out Vienna shows. To discuss the threats, Amna Nawaz spoke with Juliette Kayyem, professor at the Harvard Kennedy School of Government and former assistant secretary at the Department of Homeland Security.