Razor wire sits atop a border fence as a building in the Mexican border city of Tijuana sits behind, as seen from San Diego on Monday, Jan. 31, 2011. (AP Photo/Gregory Bull) ** FILE **
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Razor wire sits atop a border fence as a building in the Mexican border city of Tijuana sits behind, as seen from San Diego on Monday, Jan. 31, 2011. (AP Photo/Gregory Bull) ** FILE **
