Oscar turned and threw a companionable arm over Pelicanos’s shoulder, urging him along. There were, in point of fact, some laboratory cops within sight. Normally the cops employed their "Buna National Collaboratory Security Authority" trucks, macho vehicles with comic-opera official seals on the doors, but these officers had commandeered a pair of the Collaboratory’s little phone-dispatched cabs. The cops were trying to be inconspicuous.