Ticking bomb

"In his compelling book How to Break a Terrorist, Major Alexander explains that prisoners subjected to abuse usually clam up, say nothing, or provide misleading information. In an interview he was particularly dismissive of the "ticking bomb" argument often used in the justification of torture. This supposes that there is a bomb timed to explode on a bus or in the street which will kill many civilians. The authorities hold a prisoner who knows where the bomb is. Should they not torture him to find out in time where the bomb is before it explodes?" (thanks Suha)