Hour 1: How does the rise of one megacity reflect the changes and challenges faced by many countries around the world? We’ll spend this hour with Morning Edition host Steve Inskeep, who investigated the largest city in Pakistan for his new book “Instant City: Life and Death in Karachi” (The Penguin Press, 2011). Steve Inskeep will be in town to address a joint program with the World Affairs Council of Dallas Fort Worth, The Dallas Assembly and KERA this Friday, October 21st.