FILE - This May 16, 2013 file photo shows Brent Miller posing for a photo in one of the grow rooms of his medical marijuana grow operation in Seattle. It took 50 years for American atti

 

              FILE - This May 16, 2013 file photo shows Brent Miller posing for a photo in one of the grow rooms of his medical marijuana grow operation in Seattle. It took 50 years for American atti
FILE - This May 16, 2013 file photo shows Brent Miller posing for a photo in one of the grow rooms of his medical marijuana grow operation in Seattle. It took 50 years for American attitudes about marijuana to zigzag from the paranoia of "Reefer Madness" to the excesses of Woodstock back to the hard line of Just Say No. And now, in just a few short years, public opinion has shifted so dramatically toward pragmatic acceptance of marijuana that even those who champion legalization are surprised at how quickly attitudes are changing and states are moving to approve the drug for medical use and just for fun. (AP Photo/Ted S. Warren, File)