Seven years ago, Washington and Colorado became the first states to legalize recreational marijuana. Since then, that list of states and the size of the market, has only grown. Estimates say the legal marijuana industry in the U.S. will hit $13.1 billion in total value this year. In three years, that number is projected to climb to $22.2 billion. There's brewing interest in something new: cannabis-infused beer. Barry Petersen reports.
