Limit the number of charter schools? It's about time

By Nick Coleman, Star Tribune

If there remains a "sacred cow" in public education -- an issue that can't be criticized or challenged -- it is not teacher unions, the failings of inner-city schools or the empty achievements of the No Child Left Behind Act. All those topics and more have been debated vigorously in the discussion over education.

No, the last sacred cow is the charter-school movement and the notion that charter schools will reform the schools and that no limit should be placed on their number, despite mounting evidence that they, too, are beset by problems.