Special Agent Christopher Kervin, Air Force Office of Special Investigations, Detachment 602 demonstrates how to defend against an attacker during a self-defense class at the Hot spot gym on Andersen Air Force, Guam, April 30, 2013. This was one of several events held in the month of April as part of Sexual Assault Awareness Month. (U.S. Air Force photo by Airman 1st Class Adarius Petty/Released)