China's loans threaten collapse of world's poorest nations.

A dozen of the world's poorest countries are facing economic instability and even collapse under the weight of hundreds of billions of dollars in foreign loans, much of them from China. Paying back that debt is consuming an ever-greater amount of the tax revenue needed to keep schools open, provide electricity and pay for food and fuel. And it’s draining foreign currency reserves these countries use to pay interest on those loans, leaving some with just months before that money is gone. Two of them, Zambia and Sri Lanka, have already gone into default, unable to make even interest payments on loans financing the construction of ports, mines and power plants.