"There are rattlesnakes around here." His partner grinned in the dark. "Juan, that would be the least of our problems." A minute later, the handheld radio on his belt chirped with two static transmissions. "That's him. Let's move." They arose and put on light backpacks. Lights from the mine buildings were sprinkled across the hillside in front of them, casting a pale glow over the barren desert. They hiked a short distance to a chain-link fence that encircled the complex. The taller man knelt and rummaged through his pack for a pair of wire cutters. "Pablo, I think we can get through without cutting," his partner whispered, then pointed to a dry wash that ran beneath the fence. The sandy ground was soft in the middle of the creek bed, and he easily pushed some of it aside with his foot. Pablo joined him in scraping away the loose soil until they had excavated a small hole beneath the fence. Pushing their packs under it, they quickly"