Taylor Swift’s “Eras Tour” concerts in Vienna have been canceled after authorities arrested two people allegedly behind a planned terrorist attack on those shows. In recent years, Swift has called such attacks her “biggest fear.” NBC’s Kelly Cobiella reports and Clint Watts, former counter-terrorism agent for the FBI, provides analysis for TODAY. » Subscribe to TODAY: youtube.com/@TODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: today.com Find TODAY on Facebook: facebook.com/today Follow TODAY on Twitter: twitter.com/TODAYshow Follow TODAY on Instagram: instagram.com/todayshow » Stream ...