 With thousands of Republicans getting ready to officially nominate Trump for another term, security at the convention is a major concern. I'm Matt Piper in Milwaukee. The U.S. Secret Service is the leading coordinating agency for this week's events. Agent Audrey Gibson-Caccino says nothing changed after what happened in Pennsylvania. We are confident in the security plans that are in place for this event and we're ready to go. It's been an 18-month process.