conversations] [inaudible conversations] >> jeff coen author family secrets is a reporter for the tribune and kerstens a writer for the rolling stone and men's journal. coming up next after a short break the final event from "the chicago tribune" printer's row festa this one features comic book writer harvey pekar and paul buhle on the late studs terkel's book, working. >>> guy mcpherson is a professor at the university of arizona and author of living with fire. professor mcpherson, is there policy? >> particularly if a lousy enough flexibility for considerable variation how we treat places on the landscape. so, excuse me, yes, we still have policies that are broader but enough to encompass all acres but there has to be enough latitude so that we recognize california is not the desert is not counted for forest. >> what are the benefits and negative sides of fire breaking out into summers of the west? >> sure. the benefits include advantages to any number of species that involved in the presence of periodic fire. and for most ecosystems in the west united states, fire was a prevalent and frequent occu