[webXL]

There is only one justification, and it does happen to be the ticking time bomb scenario, only when you've exhausted all other (effective) investigation methods. But that's so rare that if it ever did happen in human history, the bomb would have probably detonated anyway. So it's practically useless and counterproductive.

The bottom line is if you have to resort to torture, too many systems have failed, and you have to seriously question the values you're trying to preserve.