Col. Bui Tin, a former Senior Colonel in the North Vietnamese Army (he had actually interrogated McCain and other U.S. prisoners) testified before the Senate Select Committee on POW/MIA Affairs in 1992. At least 55 American POWs were murdered by their interrogators and guards while in North Vietnamese prisoner of war camps. During a break in the hearing, Sen. McCain moved to where Col. Bui Tin was seated and warmly embraced him as if he were a long lost brother.