Nature Theater of Oklahoma talks to Philip Bither, Senior Curator of Performing Arts at Walker Art Center in Minneapolis, about ego, humility, and identity.  Is it an arrogant act to program work (or make work) that you may personally feel is important -- for an audience who may not want that kind of challenge?  What is the grass roots work a good curator has to do to find and foster public interest (as populist as we can make it) in these so-called “difficult” works?