Are you saying if you had a terrorist in custody that was going to bomb a city and it took water boarding to get the intel to stop it, you'd do nothing and let it happen?
There has not been a single instance of intel acquired under duress of torture that has proven itself to be reliable, actionable, and truthful. In these circumstances men say whatever they must to get the interrogation stopped. If you are doing it for fun so be it... but don't try to pass it off as being for legitimate purposes.