Historic rains have inundated huge swaths of South Asia this monsoon season. More than 1,500 people in Pakistan alone were killed, and the government there has warned that a return to dry land could take months. Malini Ranganathan is an urban geographer at American University who studies how social factors, like money and development, can play a huge role in where water collects in cities, and who suffers from it. She speaks with host Marco Werman.