The ones that got to Guantanamo were the very worst. Thousands of the small fish who were captured overseas were questioned and released. It was only where thorough investigation showed there was substantial, reliable evidence that a person was involved in hostile acts against the U.S. that he was sent to Guantanamo. Detainees the U.S. released, for whatever reason, have gone on to murder many dozens of innocent people. We should just have hanged the dirty sons of bitches as a lesson to anyone else who might be thinking about crossing the U.S., and been done with it.
Just after WWII, the U.S. Navy unceremoniously hanged almost 1,000 Japanese who had been convicted of war crimes in the Far East Tribunals. Because the Navy had no recent experience with hangings, a professional British hangman had to be brought in from Singapore. As one of the Americans recalled, he liked to get close to the criminal's ear and whisper, "Hello there, lad. D'ya know what I'm going to do? I'm going to break your f---ing neck!" I once saw a great photo of a U.S. serviceman giving a thumbs up sign as, a few feet away, a Japanese camp guard who had for years sadistically tortured him and his buddies took the drop with a noose around his neck. These lousy jihadist bastards deserve no better. To the Devil with them.