Pot news brought to you by http://boulderhash.com A national anti-marijuana group has met with Obama administration officials to encourage the federal government to reverse legalization in Colorado and Washington. Meanwhile, on Monday, a Colorado group concerned about the impacts of legalization on children issued a statement decrying the scenes of public pot smoking in Denver on Sunday, a day marijuana enthusiasts treat as a holiday called 4/20. Both are examples of organizations skeptical of legalization pointing to the unprecedented interest around marijuana in Denver this past week as reason to change or reverse the 16-month-old law. http://boulderhash.com Scenes of open toking, cannabis commercialism and pot-fueled revelry, the groups say, run contrary to the restrained system of at-home marijuana use that voters approved in 2012. “This…