To hear some tell it, we must look to the lessons of the war in Vietnam to guide us in Iraq. So I take this new rhetoric to mean 2 things.
1. We really left Vietnam too early. See #2 for why.
2. “The price of America’s withdrawal” from Iraq will be “paid by millions of innocent citizens whose agonies would add to our vocabulary new terms like ‘boat people,’ ‘re-education camps’ and ‘killing fields.” See #1 for how we know this will happen.
So, in other words (as some politician frequently says — see about 3:45 mark until youtube takes it down) we can’t leave unless we know no civilians will die when we’re gone. Or in other words, never.