Now Playing: 8-12-13 Marketplace

Attorney General Eric Holder wants an overhaul of mandatory minimum drug sentences. What's the economic thinking behind the proposed changes? Meanwhile, billionaire Elon Musk has revealed details of the Hyperloop, a super-fast transport system he wants to build. In Turkey, the government is trying to figure out what to do with the thousands of Syrians who have left their home nation since 2011. Also,  a look at the corn economy, bond fallout from Detroit's bankruptcy, and entrepreneurialism in the Middle East. Finally, we debut a new project called "American Futures," a collaboration with Jim Fallows, The Atlantic's national correspondent. It involves us traveling to small towns across the country. Our first stop: Holland, Mich.