David Walker, an Arizona rancher, stands at a wall on the border with Mexico at a ranch in Hereford, Ariz., on Sunday. Mr. Walker was attending a rally in support of Arizona's immigration law. (Associated Press)
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David Walker, an Arizona rancher, stands at a wall on the border with Mexico at a ranch in Hereford, Ariz., on Sunday. Mr. Walker was attending a rally in support of Arizona's immigration law. (Associated Press)
