A young cannabis plant grows at The Joint Cooperative in Seattle, Washington in this January 27, 2012 file photo. A Native American tribe, concerned about the impact of marijuana on its youth, is ... more 
A young cannabis plant grows at The Joint Cooperative in Seattle, Washington in this January 27, 2012 file photo. A Native American tribe, concerned about the impact of marijuana on its youth, is fighting to derail the rollout of a nascent recreational pot industry across a quarter of Washington state, where it still holds some traditional rights. REUTERS/Cliff DesPeaux/Files (UNITED STATES - Tags: HEALTH SOCIETY POLITICS AGRICULTURE) less 
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Reuters | Photo By Cliff DesPeaux / REUTERS
Mon, Mar 24, 2014 2:15 PM EDT