I believe Bush will do what is right, and if there are indications that a Rwanda-type situation in imminent we will act.
Civilians are already getting killed in the violence in Haiti, just not on the scale of Rwanda. What's the bar to entry for intervention, 1,000 dead? 100,000 dead? At what point are the world police (US) called in to solve other countries' problems at the expense of our soldiers' lives?