If torturing suspected terrorists was actually effective, then it could be justified. But there’s very little evidence that torture actually works to gather reliable information, and lots of evidence that it doesn’t (subjects will say anything to stop the torture). And if everyone we tortured was a confirmed terrorist, then it also could be justified. But again, they’re not.
It makes me a little sad to see such disdain for American values and morality. We live in a great country — precisely because we refuse to abandon our decency like many of our enemies. I appreciate that you’ve served our country, and how that may have influenced your outlook, but your views don’t represent the best of American values.