So do we have to let them go?

Pakistan broke suspect through torture, says the Guardian, to get information needed to shut down UK Airline Terror plot. To me, the only question should be, "Do the interrogation methods acquire reliable information?" I don't care if a subject who is known to be part of a terrorist plot is humiliated, put in fear of his life or starved. They deserve to be killed in the first place, and the only reason for not dispatching them is the knowledge they might have of terrorist plans. No methods should be used that would make an innocent person confess or make up false stories just to get the interrogators to stop, but that judgment has to be made on a case by case basis.