And it doesn’t always stick “WTF?!” a niece’s glance shot my way from down the pew. Graduation ceremonies at her cousin’s Christian high school followed the Pledge of Allegiance with a second pledge, this time to the Christian flag. Wait. What? There’s a Christian flag? It was a suburban church school, not the home-schools of the Washington Post profile, “The revolt of the Christian home-schoolers.” But it was a subculture related to the one Christina and Aaron Beall grew up in: Aaron and Christina had never attended school when they were children. Until a few days earlier, when Round Hill Elementary held a back-to-school open house, they had rarely set foot inside a school building. Both had been raised to believe that public schools were tools of a demonic social order, government “indoctrination camps” devoted to the propagation of lies and the subversion of Christian families. At a time when home education was still a fringe phenomenon, the Bealls had grown up in the most powerful and ideologically committed faction of the modern home-schooling movement. That movement, led by deeply conservative Christians, saw home schooling as a way of life — a conscious rejection of contemporary ideas about biology, history, gender equality and the role of religion in American government. Christina and Aaron were supposed to advance the banner of that movement, instilling its codes in their children through the same forms of corporal punishment once inflicted upon them. Yet instead, along with many others of their age and upbringing, they…