Renowned terror expert Veryan Khan shares her insight into ISIS and its likely role in the Las Vegas shooting. Khan is the Editorial Director of the Terrorism Research and Analysis Consortium (TRAC) and has served as a terror expert for CNN and Fox News. She describes the process by which ISIS analyzes and takes credit for terror activities around the world. She states conclusively that, contrary to common perception, ISIS does not take responsibility for activity without concrete evidence of a connection. ISIS claimed responsibility for the Las Vegas shooting within hours of the attack.