Labor unions can be a force for good, especially in protecting the interest of workers against exploitation. But as with any human institution, unions can e harmful to mon good. That is particularly true with teachers unions, which often promote the self-interests of their members even when they are antithetical to the interests of students.

In this 5 minute video, Terry Moe, Professor of Political Science at Stanford University, outlines the problem of teachers unions and offers solutions to how it can be fixed.