Engraved in a ring or suspended on a chain. The cross is the universal symbol of Christianity. An odd choice, don’t you think? Strange that a tool of torture would come to embody a movement of hope. The symbols of other faiths are more upbeat: the six-pointed star of David, the crescent moon of Islam, a lotus blossom for Buddhism. Yet a cross for Christianity? An instrument of execution? Would you wear a tiny electric chair around your neck? Suspend a gold-plated hangman’s noose on the wall? Would