Yes and no. In the case of somebody who has information waterboarding is generally an 'efficient' strategy. i.e. you have the guy you know hid the bomb somewhere in manhattan.
It's just very hard to tell when somebody doesn't know anything. And they will start making up information to make it stop. i.e. 10 guys and you have reason to believe one of them may have hidden a bomb somewhere.
It's just very hard to tell when somebody doesn't know anything. And they will start making up information to make it stop. i.e. 10 guys and you have reason to believe one of them may have hidden a bomb somewhere.