He’s one of the most prolific art forgers ever — but Mark Landis won’t be prosecuted, because he never made a dime off his copies. What motivated him? We’ll also hear from Tavi Gevinson, who rose to fame as a preteen blogger; now a high school graduate, she’s making her Broadway debut. Plus, Kurt gives some tips to Alan Cumming, who will guest host Studio 360 later this month. (Hint: bring your own Campari.)