Scuba students undergo confidence training. Scuba students at the Naval Diving and Salvage Training Center in Panama City, Fla., undergo confidence training in a 12-foot pool as part of a scuba certification course on Dec. 6, 2006. Confidence training is a portion of a five-week course designed to test the students' reactions to real-world emergency situations. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 464869-N-PAW85-562.jpg Photo Gallery