> Lots of European countries have very powerful teachers' unions and tenure (off the top of my head France, Germany, Sweden, Norway). It's easy to do things in

> Lots of European countries have very powerful teachers' unions and tenure (off the top of my head France, Germany, Sweden, Norway). It's easy to do things in those monocultures. Heck, look at the "scandanavian" states in the US - they work even better. The US as a whole, for better or worse, is far more diverse. (And segregated.)