As an afterthought, here’s a practical perspective on the ticking time-bomb ‘problem’.
The scenario is that you have information that Mr X has planted a nuclear weapon on a timer in a major city. You’ve still got him strapped down with his ‘nads wired up so how are you going to find out where the bomb is in time to save the population? Torture him, we all chorus.
Except that it won’t work very well.
‘Where’s the bomb?’
‘It’s concreted into the foundations of the Shard, so fuck you!’
‘Yes, you’re all going to die. Fuck you!’
‘Tell me the truth!’
‘That is the truth!’
‘I want the truth, now, or you’re going to suffer even more’
‘Aaaaaaaargh! OK, it’s in the left luggage office at Paddington. There was a bear nearby, eating marmalade sandwiches’
So what can you do? A team goes off to dig up the Shard; another team goes to Paddington. The bomb goes off in Victoria Station left luggage. Everyone dies.