In a "live situation", I would employ just about anything to save innocent people. I'd feel like shit afterwards; and, I'd wouldn't make a career out of the practice. In a situation where someone has been in captivity well past his "battlefield knowledge", I would not.
I was a soldier, and even to this day I take my Oath very seriously. (Even though I'm pretty far over the hill.) I do have to balance all of that with my understanding of God's preferences. I suspect there are those who enjoy mistreating others. We even have plenty of bad cops to go around. I'm sure there are turds in other places.
You sound like the president. At the end of a long winded answer he mutters "I would do what it takes to protect the American people." This shows that all the self-righteousness, sack cloth, ashes and beating yourself on the sholders and back is just show.
Here's the answer that the majority is yelling at you. Torture a person with guilty knowledge to save innocent lives. If you can kill a convicted murderer, you can torutre and leave alive someone to save a school bus load of kids, including mine and yours. In fact, if my kids are on the bus, I will kill you if you don't torture the sob. And I'll kill him if I can get to him.
I'd like to see you look your kids and wife in the eye and give any other answer.
You were a soldier? When and where?