U.S. Border Patrol agent Jesus Vasavilbaso bounced his white SUV over dirt trails through remote terrain near the U.S.-Mexican border.  
Gray clouds offered some respite from the searing summer heat. Brown shrubs and cacti stretched to the horizon. His radio was quiet. For the moment. 

Like many other West Texas sheriffs, Oscar E. Carrillo packs a gun, drives a truck and wears a cowboy hat. But it is his newest piece of gear, a corpse trolley, that has him questioning whether to remain a lawman.