Education reformers have a name for the resistance they encounter: the education "Blob." The Blob includes the teachers unions, but also janitors and principals unions, school boards, PTA bureaucrats, local politicians, and so on. They hold power because the government's monopoly on K-12 education eliminates most competition. Kids are assigned to schools, and a bureaucracy decides who goes where and who learns what. Over time, its tentacles expand and strangle attempts to reform. Since they have no fear of losing their jobs to competitors, writes John Stossel, monopoly bureaucrats can resist innovation for decades.