OFF THE COAST OF BRAZIL - Petty Officer 3rd Class Angel Rios, a gunner's mate stationed aboard the Coast Guard Cutter Northland, supervises as two Brazilian naval officers perform handcuffing techniques in Rio De Janeiro, Brazil, April 22. The Northland is in Brazil participating in this years UNITAS, Atlantic phase. It is a multinational exercise that helps test the interoperability of U.S. and foreign navies. U.S. Coast Guard photo by Public Affairs Specialist 2nd Class Nathan Henise.