Immigrants hide from a border patrol vehicle while waiting to cross into U.S. at the border fence on the outskirts of the Tijuana

Immigrants hide from a border patrol vehicle while waiting a chance to cross into the United States at the border fence on the outskirts of the Tijuana September 19, 2009. Mexico's violent drug gangs are increasingly kidnapping illegal migrants for ransom and forcing them to carry narcotics into the United States as they muscle into the lucrative trade of smuggling people across the border. REUTERS/Jorge Duenes