071022-N-7981E-155 NAVAL AMPHIBIOUS BASE CORONADO (October 22, 2007)- Lt. Col. Dave Grossman (U.S. Army Retired), director of the Killology research group and author of the Pulitzer Prize-winning book "On Killing: The Psychological Cost of Learning to Kill in War and Society" delivers his acclaimed "Bulletproof Mind" lecture to Special Warfare Operators, Explosive Ordinance Disposal, and other special operations personnel at the Naval Amphibious Base Coronado theatre. During the six-hour lecture, Grossman discussed a broad range of issues faced by the "warrior" community and the importance of overcoming them in the face of an increasingly violent society. Grossman, a former Army Ranger and West Point psychology professor, is considered one of the world's foremost experts in the field of human aggression and the roots of violence and violent crime.