The 2016 U.S. presidential campaign has been a tense and sometimes dangerous string of events. On June 18, the Secret Service and Las Vegas police thwarted an attempt to assassinate Donald Trump. The Secret Service is bracing for the possibility of other attempts that may take place against a range of targets at the political conventions and beyond. In an exclusive interview, Secret Service Director Joseph Clancy tells Target USA, "We've had over 1,200 events in this campaign, 2.5 million people have gone through magnetometers," and each event is the potential for something to go wrong.