A federal judge in Michigan took exactly the right action last week when he dismissed a transparent attempt by the National Education Association, the nation’s largest teachers’ union, to sabotage the No Child Left Behind education act. The ruling validates Congress’s right to require the states to administer tests and improve students’ performance in exchange for federal education aid. Unfortunately, it will not put an end to the ongoing campaign to undermine the law, which seeks to hold teachers and administrators more closely accountable for how their schools perform.