"Why don't the Americans just go home?

From Riverbend, the Iraqi blogger:

Why don't the Americans just go home? They've done enough damage and we hear talk of how things will fall apart in Iraq if they 'cut and run', but the fact is that they aren't doing anything right now. How much worse can it get? People are being killed in the streets and in their own homes- what's being done about it? Nothing. It's convenient for them- Iraqis can kill each other and they can sit by and watch the bloodshed- unless they want to join in with murder and rape.