Without jumping into politics too much, which is my historical wont, I have to comment on a few things. I don't think the general American get's a "buzz" from knowing someone has been executed. Most Americans just feel that justice has been done and the convicted has received what he deserves for committing a crime. The reason we still have the death penalty is because most Americans stand firmly by their Christian roots and conclude that "an eye for an eye" is fair. I can understand how it would be hard to feel normal if I know that the murderer of my sister is a free man. I agree with you that innocent people have unfortunately been victim to an imperfect justice system, but you can't claim that any other system is perfect. Plus, how do you purport to know more about the flaws of the American justice system than we do? I'm a product of our public schools and I know that they teach facts, not propaganda. There aren't national laws requiring teachers to say certain things.
Also, how in the world is McDonalds a death factory?