Bryan Yetter, a federal wildlife officer with the U.S. Fish and Wildlife Service stands guard next to a huge pile of confiscated elephant tusks, before 6 tons of ivory was crushed, in Denver, Colorado... more 
Bryan Yetter, a federal wildlife officer with the U.S. Fish and Wildlife Service stands guard next to a huge pile of confiscated elephant tusks, before 6 tons of ivory was crushed, in Denver, Colorado November 14, 2013. REUTERS/Rick Wilking less 
1 / 31
Reuters | Photo By RICK WILKING / Reuters
Thu, Nov 14, 2013 9:49 PM EST