... agent and customs inspector in Washington who traded in her desk and computer to work "intel" in the desert, employing sign-cutting -- or tracking...- paw-who-dle) roams this vast Indian reservation in a four-wheel-drive pickup, armed with an M-4 rifle and a .40-...or a fiber on a branch in a thicket could mean a backpacker carrying burlap-wrapped bales of marijuana on his back bumped against the...