The night before John Verdi’s first day at the police academy, his dad—a former officer himself—had some advice: say hi to everyone. That counsel proved to be pivotal to Verdi’s career, including a profound experience on 9/11 and a split-second decision that spared a life. Verdi’s since retired from the NYPD, but his learnings inspired him to create an app that helps communities and police connect on a human level and, just maybe, save future lives. On this episode of The Big REthink, he joins host Susan Campbell to discuss how his app is bringing people closer together.