SeveredOur history is littered with heads. Over the centuries, they have decorated our churches, festooned our city walls, and filled our museums; they have been props for artists and specimens for laboratory scientists, trophies for soldiers, and items of barter. Today, as videos of decapitations circulate online and cryonicists promise that our heads may one day live on without our bodies, the severed head is as contentious and compelling as ever. From