In this Feb. 28, 2015 photo, an elite policeman of the DIRANDRO counternarcotics police agency walks through a puna in Husnay, Peru, after an unsuccessful mission to try to arrest drug-toting backpackers hiking up from the world’s No. 1 cocaine-producing region. The backpackers can choose from myriad routes in a half dozen corridors of sparsely populated steppe. They often hike at night, to avoid detection. Few know before they are arrested that they face eight- to 15-year prison sentences. (AP Photo/Frank Bajak)t

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