Torturing Effective in Gathering Intel

If we are to listen to the rhetoric on the news we see that the civilized world does not have the stomach for torture? Yet at the same time we watch the cutting off of heads of civilians? These are not soldiers of an Army, these are International Terrorists who hold civilization for ransom using murderer on the innocent; they are sub-human. Why is torture inappropriate? Some say it is ineffective, but how would they know that?

How on Earth can anyone say