"We must learn from those errors and get it right this time. We need a domestic intelligence capability. Every major power in the world has one, most with too much power. Britain's M.I.5 and France's Renseignements Generaux can open mail and tap phones at will. (Many in Washington believe that one reason so many terrorists operated out of Germany is that -- fearful of creating another Gestapo -- it has a weak internal security agency.) In an age of terrorism, when the enemy will often be operating inside America, we can't remain blindfolded."

Its only a matter of time before a cure like this becomes worse then the disease. The FBI does not have to wait for a crime to occur inorder to investigate. They DO have to have reason to suspect that crime may occur. What this article asks for is a organization that can spy on you just because they don't like your politics.

The reason this isn't done has nothing to do with the way the FBI works. The reason this isn't done is because its not constitutional. If everyone else is jumping off of a cliff are you going to do it too?

washingtonpost.com: Spying at Home