Dick Cheney appears to be saying, if I have understood correctly that if we were able to see the evidence of how much torture has helped in the fight against terrorism, we may not be so opposed to it. It is a compelling argument, if I or my family had been spared some awful event because of information extracted, surely I would just be grateful. I may not want to know the details of how the information was obtained , I would just be glad it had been.

However this does seem to be just  another way of saying that the end justifies the means, and it doesn't. However much I may want to protect my loved ones, there is a more noble side to humanity , and for Christians a higher authority which states plainly that it is wrong to inflict suffering on another human being.

Under Roman occupation, Jesus must have seen some terrible atrocities in his lifetime, surely on par with our troubles in today's world, which makes it all the more powerful for him to preach that we should love our enemies and pray for those who persecute us. Imagine not just , not torturing them, or even just leaving them alone, but loving them. Is that possible today?
I cannot answer that, but it is a challenge and I am reminded that no where is there justification for inflicting pain and suffering on others.

"You have heard it was said, Love your friends and hate your enemies. But now I tell you: love your enemies and pray for those who persecute you, so that you may become the children of your father in heaven."
Matthew 5 vs 43-45