As the sector's gatekeepers, charter school authorizers are responsible for ensuring that schools in their purview set students up for success. To that end, they provide various forms of scrutiny and technical assistance, decide whether existing schools' charters should be renewed, and--perhaps most important--set the bar for the approval of new…

America's urban Catholic schools are in crisis. This report finds that over 1,300 schools have shut down since 1990, mostly in our cities. As a result, some 300,000 students have been displaced--forced to attend other public, private, or parochial schools. The school closures have cost taxpayers more than $20 billion to accommodate the additional…