The Death Knell of Brown v. Board of Education
The weapon wielded to strike its death blow? The Equal Protection Clause of the 14th Amendment. See 'cuz integration measures to counter the increasing re-segregation of our schools - schools are less integrated now than they were in 1970 - are just as offensive to the Constitution as segregation. At least, that's the argument which is garnering sympathy among 5 members of the Supreme Court.
Let's talk bitter, bitter irony.
Update: A better, similar article on the same topic. I've always liked Linda Greenhouse's explanations.