FILE - In this Dec. 10, 2013 file photo, Julio Calzada, head of Uruguay's National Drugs Board, watches senators debate the legalization of marijuana in Montevideo, Uruguay. Each marijuana plant that exists in Uruguay will be recorded in order to track and identify it, to be certain that the cannabis produced locally is not exported said Calzada in an interview Thursday, March 27, 2014. (AP Photo/Matilde Campodonico, File)
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