The voter-approved marijuana measures in Washington and Colorado are pulling marijuana out of the black market. So how big is that market?

I mentioned it was potentially a billion-dollar industry in Washington alone in a Seattle Times story this Sunday about marijuana-industry investors. That was based on a state Office of Financial Management estimate before the November election, which used federal use surveys, plus the per-gram price at local medical marijuana dispensaries, and came up with a potential $1 billion market.