If you bothered to read what I cited, it says that they're actually being prosecuted in Iceland, I don't think anyone here is for just throwing them in jail for shits & giggles.
You also said we should prosecute them. That requires that they actually committed a crime. Right now, we don't know for sure that they did commit crimes. People are throwing around the word "fraud," but there are specific standards for criminal fraud, and regulations can be written to allow actions that appear to be fraud-like to actually be legal. (I don't know banking law, so don't feel comfortable digging deeper into the issue.)
In order for something to be an actual crime, there has to be a statute (passed by Congress and signed by the President) making the action a crime. We all know the banks pay millions of dollars to political campaigns. I, personally, find it hard to believe that criminal statutes would be written in such a way that politicians would put the people paying them in prison. I also know that the banks pay teams of lawyers to study the laws and make sure that the bank's actions stay just on the "legal" side of the fence.
That's why I keep saying I am not sure we can prosecute many (if any) of the bank executives. They aren't stupid. They can do something the legal way and still make billions.