Navy veterans and brothers Mark, left, and John Brancaccio, right, salute riders as they pass them along Constitution Ave during Rolling Thunder XXXI First Amendment Demonstration Run in Washington, DC on Sunday May 27, 2018. Motorcycle riders from across the nation, rode a designated route through the Mall area of Washington, D.C. The event is an actual demonstration/protest to bring awareness and accountability for POWs and MIAs left behind.(Alan Lessig/Staff)