Mexico's drug war heats up near Arizona border

A vehicle involved in a shootout between rival drug and migrant trafficking gangs is towed away near the city of Nogales, Mexico on the border with Arizona, Thursday July 1, 2010. Sonora state officials say that 21 people were killed in the gunbattle and at least six others were wounded. (AP Photo/Diario de Sonora) (AP Photo/Diario de Sonora)

July 5, 2010 8:01:51 AM PDT
Very few residents dare to drive on one of the roads out of this watering-hole for migrants, fearing they will be stopped at gunpoint. They worry they will be told to turn around after their gas tanks are drained or, worse, be kidnapped or killed.