The Weather Underground wised up, and realized that instead of bombing buildings and shooting cops, they could be more effective by becoming school teachers.
What is infuriating is that we allowed this to happen at the local level and our representatives failed to give us cover by not stressing the need for complete reform of the public schools as well as offering choice via Federal legislation which would promote change. You go out on a limb locally and you are chastised at every level. I know that my local High School had my 1990's letters to the editor on their make believe dart board in the teachers lounge.