Border Security Threatens Mexico-California Economic Ties

U.S.-MEXICAN BORDER - MARCH 25: The U.S.-Mexico border fence is seen at sunrise March 25, 2005 near Calexico, California. Since the launch of the North American Free Trade Agreement in 1995, two-way trade has boomed between the US and Mexico. Border communities are now growing worried that the recent economic gains may be lost if U.S President George W. Bush administration will tighten security in order to prevent terrorists from crossing the border. (Photo by David McNew/Getty Images)