Murtha's Law.

"It almost doesn't matter whether withdrawing or redeploying the troops is a good idea; it's simply going to happen because there is no way for it not to happen (short of a major act of political will, such as reviving the draft or keeping troops on the battlefield beyond reasonable endurance). This is what Murtha meant when he told Russert, 'We're going to be out of there, we're going to be out of there very quickly, and it's going to be close to the plan that I'm presenting right now.' Cutting through the congressional anger and the "cut and run" cheapshots, Slate's Fred Kaplan explains exactly what John Murtha called for last week, and why. "John Murtha's proposal leaves open a lot of questions, but -- seen for what it really says, not for how it's been portrayed -- it's a start."