Chief of Naval Operations Adm. Jonathan Greenert speaks to Moon Area High School students as well as partner high schools from the school's auditorium and virtually via video teleconferencing during an event hosted by the World Affairs Council of Pittsburgh. Greenert spoke to the students and answered questions about their Navy, what it's doing around the world and how those actions help secure their way of life. (U.S. Navy photo by Chief Mass Communication Specialist Peter D. Lawlor/Released)