emily bazelon, thank you so much for joining me. emily bazelon. slate, we'll be right back. (cheers and applause) (cheers and applause) >> stephen: thank you very much. welcome back, everybody. nation, it's no secret i am t.v.'s foremost heart expert. i love it all, your suit man, your drippy guy, your apple face your one-yeared vinnie, all the big ones. well, there's one so-called painter that i have a serious beef with. the guy who painted this stuff. british guerrilla graffitiist banksy, an anonymous street artist no one has ever seen. well, folks, brace yourself because the british are coming, the british are coming. >> banksy announced on his web site he's taking up residency in new york this month launching a series of works called "better out than in." the first work appeared on alan street near canal. it shows a child holding a can of spray paint standing on another child's back below a sign that reads "gras feet city a crime." >> stephen: graffiti is a crime. so, nation, call the police if you see this man. (laughter) now, folks, i have got absolutely zero respect f