'Afghan Money Pit' - The U.S. has spent nearly $100 billion on reconstruction projects in Afghanistan, but much of that money has been wasted and misused--or fallen into the hands of the Taliban. 'The Pacification of Rio' - Rio de Janeiro's futile efforts to clean up corruption before the Olympics.

'American Scrap' - David Choe looks into the life cycle of scrap metal, from the people who risk their lives to find it, to the yards that buy it, all the way to the Chinese traders who take it back home to build their economy. 'Children of Drones' Suroosh Alvi investigates the effects of drone strikes in Pakistan, where extremism and militancy are growing as a result.