“You have encroached on the Cerberus defensive perimeter! Move back. Move back,” says the Range Rover. “An armed response team is being placed on standby.” “It is the only cryptographically sound car alarm system,” Avi says, as if that settles the matter. He digs out a keychain attached to a black polycarbonate fob with the same dimensions, and number of buttons, as a television remote control. He enters a long series of digits and cuts off the voice in the middle of proclaiming that Randy and Avi are being recorded on a digital video camera that is sensitive into the near-infrared range.
