This July 14, 2010 image shows cow skulls for sale in one of the shops near the historic plaza in Santa Fe, N.M. A national historic landmark, the plaza has served as the commercial, social and political center of Santa Fe since the early 1600s. It plays host to art markets through the year and is home to the Palace of the Governors, the nation's oldest continuously occupied public building. (AP Photo/Susan Montoya Bryan)
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