The Exchange 10/12/09 IOWA (kuni) - A look back at Pope John Paul II visit to Iowa 30 years ago. Host Ben Kieffer talks with Joe Hays, the Iowa farmer who drafted a letter urging the Pope to come to Iowa. Plus a conversation with Father Bud Grant who was an acolyte at the Pope's side during the 1979 ceremony. Later in the hour, Ben talks with Northwestern University Professor of Religion Robert Orsi about his lecture at the University of Northern Iowa examining the challenges facing the Catholic Church. © Copyright 2012, kuni