New York State lawmakers are on the verge of a deal to legalize adult recreational marijuana. Legalization would eventually generate $3.5 billion a year in economic activity, according to estimates by Gov. Cuomo’s office. NBC News’ Ben Popken reports. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is