PANAMA CITY, Fla. - Six students at the Naval Diving and Salvage Training Center here surface after participating in a training exercise Wednesday, Dec. 6, 2006, in the center's 12-foot pool. Personnel at the training center offer several underwater diving courses to all branches of the military, with the exception of the Navy Seals and the Green Berets. U.S. Coast Guard photograph by Petty Officer 1st Class NyxoLyno Cangemi