This quiet company can transform any object, including a person, as they do in Hollywood, a "silicon face appliance" sculpted to perfectly alter someone's looks. They can age, change gender, and "increase body mass," as one classified contract says. And they can change fingerprints using a silicon sleeve that so snugly fits over a real hand it can't be detected, embedding altered fingerprints and even impregnated with the oils found in real skin. Asked whether the appliance is effective, one source, who has gone through the training, laughs. "If I tell you, I'll have to kill you."