160613-N-EC678-012 GROTON, Conn. (June 13, 2016) The American flag flies at half mast at Dealey Plaza on Naval Submarine Base New London (SUBASE). President Barack Obama ordered all United States flags to half-staff as a mark of respect for the victims of the act of hatred and terror perpetrated on Sunday, June 12, 2016, in Orlando, Fla. (U.S. Navy photo by Mass Communication Specialist 2nd Class Erin Hamilton/Released)