The Vermont Coalition to Regulate Marijuana released a new television ad this week, produced by the Marijuana Policy Project, featuring Vermont’s former top law enforcement official. The ad began airing statewide on Tuesday and will appear on WCAX, CNN, Fox News Channel, and MSNBC through Sunday. In the ad, titled "Time to End Prohibition (Again)," former Vermont Attorney General Kimberly Cheney points out that "marijuana prohibition has caused a lot of the same problems" as Alcohol Prohibition.…