Teaching for “social justice” is a cruel hoax on disadvantaged kids.In 1980, Bill Ayers and his partner Bernardine Dohrn came up from the underground—the Weather Underground, that is. It had been a wild ride for the Bonnie and Clyde of the sixties New Left. They first went into combat during the 1969 “Days of Rage” in Chicago, smashing storefront windows and assaulting police officers and city officials in the fantasy that they were aiding their Vietnamese allies by “bringing the war back home.” They spent the next few years planting bombs at government buildings around the country, including in restrooms...