Artist Ai Weiwei is shown in 2010. He is cooperating on an art installation with Navajo artist Bert Benally in Coyote Canyon. (AP Photo/Andy Wong, File)

Artist Ai Weiwei is shown in 2010. He is cooperating on an art installation with Navajo artist Bert Benally in Coyote Canyon. (AP Photo/Andy Wong, File)

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