Unions sue to block Edison Schools involvement in Clark County, Nev.

A lawsuit filed by the Nevada State Education Association, the Education Support Employees Association and Assemblyman Wendell Williams will attempt to block Edison Schools Inc., the nation's largest for-profit manager of private schools, from coming to Clark County. The lawsuit maintains that the district's five-year contract with the firm, approved earlier this month by the School Board, violates the state constitution. It also asks for state and other funding to be withheld from Edison.

Related story: Concerns about Edison Schools Inc.'s practices and lack of academic successes have Pontiac, Mich., school officials airing grievances. The dispute in Pontiac could lead to a vote next week on whether to terminate the school district's contract with Edison. Similar problems exist in the Inkster Public Schools. (Detroit Free Press)