"They come at you with a knife. You go back at them with a gun. They put several of your men in the hospital. You put a bunch of theirs in the morgue. That's the Chicago way." Sean Connery in The Untouchables (more or less word for word). That came to mind reading this, and it's the only way to fight the Bush and Co.:
"Another Kerry adviser was more blunt. "This is not the Dukakis campaign," the adviser said. "We're not going to take it. And if they're going to come at us with stuff, whatever that stuff may be, if it goes to a place where the '88 campaign did, then everything is on the table. Everything.""
http://www.nytimes.com/2004/02/05/politics/campaign/05MASS.html