As a monsoon storm approaches Lance Altherr and Carmen Mercer, vice president of Minuteman Civil Defense Corps, on Elephant Head Rd. in Green Valley, Arizona. Cars line up where high-traffic migrant trails cross the road. Like the organizations that give aid to immigrants crossing the border, the Minuteman Civil Defense Corps is trying to send a message that the U.S. government is at fault for many of the problems on the border.The Minutemen have night patrols one or two times per month and month long musters in October and April, the months with the highest traffic. At night they use both night vision and infrared equipment to spot immigrants before they reach the border. If an immigrant is spotted, border patrol is notified, but no further action is taken.