Oscar Duran, Miami-Dade County, Fla., Fire Rescue paramedic, demonstrates a tracheal tube insertion during a Street Smart presentation at Fort Eustis, Va., Nov. 7, 2013. The demonstration showed how paramedics perform life-saving techniques, such as chest tube insertions, and the possible side effects of those techniques, such as paralysis or severe scarring. (U.S. Air Force photo by Airman 1st Class Austin Harvill/Released)