Three Taylor Swift concerts canceled after terror threat

Officials in Vienna announced the arrest of the people behind an apparent plot to launch an attack. Taylor Swift was scheduled to perform in Vienna as part of her Eras Tour. The main suspect, a 19-year-old, was arrested in Ternitz, which is south of Vienna. A second person was arrested in the Austrian capital. Hal Kempfer, national security expert, joins LiveNOW from FOX.