Francis Frith/Library of Congress Opinion Krulwich Wonders... The Boomerang Graffito (Or Bad, Bad, Luther B!) June 7, 2013 Be really careful when you carve your name onto an ancient Egyptian temple. Not because it's wrong (which it is), but because sometimes the temple comes back to haunt you. The true story of Luther Bradish, an American spy who didn't keep his secret.