Five years after Hurricane Katrina, the New Orleans public schools bear little resemblance to the disintegrating system that was further undone by the catastrophic flood. Two-thirds of city schools in 2004 were rated "Academically Unacceptable" under Louisiana's accountability standards; in 2010, about 4 in 10 rate that designation, and the percentage of students attending a low-performing school has fallen by half, from 67 percent to 34 percent. Most striking of all, nearly three-quarters of public school students attend charter schools, proportionally more than in any other U.S. city. Just weeks after the storm, officials turned the city's failing schools over to the state-run Recovery School District (RSD) and gave the RSD five years to turn them around. That deadline was reached last December, and a vote by the state school board has extended the RSD's reform effort, albeit with modifications that promise greater autonomy to schools that meet performance targets and create a process for qualified operators to take over failing schools. The December vote was a victory for charter schools and the RSD, one that boldy advances a school reform model as innovative as it is controversial.