“This is not a book I could have imagined writing a dozen years ago. When an older couple from another town attempted to set up and lead a Bible club at my daughter's public elementary school in Southern California in 2009, they might as well have been alien visitors showing up at a beach party. The purpose of the club was to convince children as young as five that they would burn for an eternity if they failed to conform to a strict interpretation of the Christian faith. The club's organizers were offered free and better space in the evangelical church next door to our school, but they refused it; they insisted on holding the club in the public school because they knew the kids would think the message was coming from the school. They referred to our public school as their "mission field" and our children as "the harvest." ... As I researched the group behind these kindergarten missionaries, I saw that they were part of a national network of clubs. I soon discovered that this network was itself just one of many initiatives to insert reactionary religion into public schools across the country. Then I realized that these initiatives were the fruit of a nationally coordinated effort not merely to convert other people's children in the classroom but to undermine public education altogether. Belatedly, I understood that the conflict they provoked in our local community- -I was hardly the only parent who found their presence in the public school alarming was not an unintended consequence of their activity. It was of a piece with their plan to destroy confidence in our system of education and make way for a system of religious education more to their liking.”