Over at Slate, I discuss why that could be a good thing for public education -- if policy-makers don't miss the opportunity to lessen the racial and socioeconomic isolation of poor, non-white children.
By the way, every time I write about the benefits of integrated schools, someone asks whether going to school with poor children hurts the academic achievement of middle class kids. It does not, as long as the classroom doesn't "tip" to become majority high-poverty. Rick Kahlenberg discusses some of the research here. On the social benefits of integration for all kids, I recommend the work of Amy Stuart Wells.