How a series of violent Amish-on-Amish attacks shattered the peace of a peace-loving people and led to a new interpretation of the federal hate crime law. On the night of September 6, 2011, terror called at the Amish home of the Millers. Answering a late-night knock from what appeared to be an Amish neighbor, Mrs. Miller opened the door to her five estranged adult sons, a daughter, and their spouses. It wasn't a friendly visit. Within...