PRI's The World: 08/23/2016

Today, we explore the topic of race in the US with Nigerian American writer Teju Cole. His new collection of essays is called "Known and Strange Things." We also hear about a tech entrepreneur who thought he had a great idea to help improve living conditions in India and Africa. Things didn't go as planned, and now he's teaching his lessons of failure at MIT. Plus, there's a new craze for ramen noodles as currency in prisons.