Historian, Clint Johnson visits with the real stories echoed in Tom Hanks’ upcoming fictional movie, "Greyhound" in his book, "Tin Cans & Greyhounds: The Destroyers that Won Two World Wars" (Regnery History). In "Tin Cans & Greyhounds", Clint details how destroyers fought submarines, escorted convoys, rescued sailors and airmen, downed aircraft, shelled beaches, and attacked armored battleships and cruisers with nothing more than a half-inch of steel separating their crews from the dark waves.