. >>> good evening, i am tavis smiley, first, with sash sasha polakow suransky, then, street artist shepard fairey is joining us looking at street arts and activisms as it relates to its most iconic work his work and depicting from barack obama. we are glad you are joining us, all of that is coming up in just a moment. ♪ >>> and buy contributions to your pbs station from viewers like you. thank you. please welcome sash sasha polakow-suransky, he's the author of the book "go back to where you came from, "white n s nationalism." i read that. what kind of backlash did you get from that? >> i got some creepy message, something that i don't want to see on facebook and twitter. it got under a lot of people skin. >> give me some sense of what you heard? >> there were a lot of backlash of white nationalist groups. i got a lot of comments looking into my own background and insinuating things of jewish people. it was uncomfortable but i was not entirely surprise. i think there were people out there who were offended by it because i was calling them out. >> is immigration like, i am going to say the n