Poster maker and political artist Doug Minkler talks about his experience creating the collaborative large scale "U.S. Out of Central America" sculpture in the Emeryville Mudflats and his feelings about its subsequent demolition a day later. He discusses making and exhibiting political art, selling work on Telegraph Avenue and being left with the lesson of the Mudflats experience that, there, "a small group of people could have a big effect, that the number of people that saw that sculpture, even on one day, was profound"