Muhammad, a lieutenant serving in the Jewish army, peers into the Bible-black night, matching his rival's wits against his own. Having guided the police to this spot, the Beduin tracker squats on his haunches out of sight watching two smugglers, both Beduin like himself, quietly coax an old and toothless camel across the fenceless border. Its curly back is laden with two huge burlap sacks, each containing 70 kilos of dried marijuana. Each sack is worth the price of a new car in Israel, but for his fee, the Beduin smuggler is promised just 1,000 Egyptian pounds, about $160. For...