Mason Tvert, spokesperson for the Council on Responsible Cannabis Regulation, talks during a news conference in reaction to the announcement that a federal lawsuit is being filed on behalf of two Colorado citizens by a Washington D.C.-based group to shut down the state's $800-million-a-year marijuana industry early Thursday, Feb. 19, 2015, in Denver. The lawsuit is being sponsored by a group called the Safe Streets Alliance, which is based in the nation's capital and opposes marijuana legalization. (AP Photo/David Zalubowski)
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