After peering into the U.S. from atop the U.S.-Mexico border fence, a man returns to the Mexican side in Tijuana, Mexico. But Indian tribes are calling for a halt to building the fence, arguing it will destroy their traditions and religious practices. (Associated Press)

After peering into the U.S. from atop the U.S.-Mexico border fence, a man returns to the Mexican side in Tijuana, Mexico. But Indian tribes are calling for a halt to building the fence, arguing it will destroy their traditions and religious practices. (Associated Press)