Which is worse: waterboarding a known terrorist, or allowing a mass murder to occur?
Jesus was a little tough on the money-lenders
That is not particularly a moral question, especially given that the hypothetical dichotomy is unlikely to exist in that exact form. "Is waterboarding a very effective way to gain useful or essential information?" must be determined by the prudential judgment of national security professionals. (Given that our national security professionals don't want to be prejudiced by reading potential terrorists' Facebook posts, we might take a jaundiced view of their prudential judgment, but that's another issue.)
Jesus was a little tough on the money-lenders.
He made a "whip of cords," a rope flail of some sort, and swatted at them with it as they scuttled from the Temple premises, leaving their money scattered on the ground. It boggles my mind that any rational person would conclude from that event that Jesus "approves" of torture.