i think by 1940 it was something like 40 percent of the population went to high school and thennowadays , everybody, almost 100 percent, at least start high school. they don't necessarily finish but they at least high school. this is one of the success stories is that we the united states is really at the forefront of this opening up to mass education. you think about well, how do you get what happens at the school level or within a classroom to change? let's say you want kids to have a better education. you've got to think about what's the policy to level that you can change to affect that? when the systems are what sociologists call and i call in my book whose couplings, they are loosely connected. the federal government if it wants to do something it's not translated down to the school level. it's at the classroom level because each of those entities has a lot of the economy. they have all sorts of ways to not comply or to comply in a way that appears they are complying but they are really not. so this is a quick example of that. think of the no child left behind at the federal level