It is my opinion that, if you ally yourself to a group who choose to wage war in a most savage fashion ~ targeting civilians with nail bombs, kidnapping aid workers for the sake of torturing them and their relatives, cutting their heads off in front of the cameras and then showing those images around the word, then you deserve all that your captors can do to you. If you chose to be a terrorist then you can expect no quarter from those you have declared war upon. If that takes our "civilised society" down to the level of the terrorists then so be it. We, in the West, have not sunk that low yet. We are still not cutting off heads (although I suspect that the fear that we might has been used during questioning).
Let us not forget we are dealing with people who have different values to ours. During WWII the Japanese committed appalling acts against British, Commonwealth and US prisoners. The Japanese have only recently recognised why we were so offended by their actions ~ because their whole mindset was different to ours.
What we hold dear and consider right and proper the fanatics in the Arab world and their "converts" from within the commonwealth and even Britain itself do not. They see these values as a sign of weakness and will use them against us given the opportunity. If "Extraordinary Rendition" has occurred (and I think it most likely that it has, for the purpose alleged) and if the information gained by it has saved one single life on our side then it is worth it. Even if we cannot say that a life has been saved and all we can claim is that we have frightened off one convert to Islamic Extremism by our willingness to embrace some if not all of their own tactics it is still worth it.
Bollox to the namby-pamby Human Rights Brigade who would happily hand our whole country over to these thugs. High time they were also sorted out. They are no better than those who sided with Mosley and his thugs and that includes the Daily Mail and Evening Standard.