Let's be real here. Islamic terrorists are a formidable foe. They have no conscience and they have no compunction - they will kill anyone they can get to if they think it will further their agenda. They are dangerous, very dangerous.
Generally I support tough methods for extracting information and generally I support the government in what they are doing. It must be remembered, however, that information gotten from torture (admit it, that's what it is) is often suspect. If someone is applying electrodes to my nether regions, I might admit to anything.
We need to be very careful with this stuff. Like the death penalty, it's unsavory for us to engage in this activity but at the same time it may be necessary.
And it does remove us from the moral high ground with the rest of the world. Of course the rest of the world, for the most part, didn't have 9/11 or 7/7 (the London tube bombings)...