EP 04: Special Guest Lt. Col. Dave Grossman, renown law enforcement and military trainer and author. Col. Grossman's books, including his perenial best-seller, "On Killing: The Psychological Cost of Learning to Kill in War and Society", are required or recommended reading in all four branches of the U.S. Armed Forces. Get this title, as well as Sgt. Wolf's Amazon best-seller, "Blue Lies: The War on Justice and the Conspiracy to Weaken America's Cops," on Amazon, or at www.blueliesbook.com