This is one of those unsettling science facts that makes us wonder what else was going on behind the scenes. During a Vietnamese propaganda interview, an American prisoner of war Jeremiah Denton blinks the word “TORTURE” in Morse Code, confirming for the first time to U.S. Naval Intelligence that American POWs were being tortured. Vietnam War, 1966. It was one of the smartest ways to relay a message. He endured almost eight years of torture and grueling conditions, including starvation and beating.