Greece's Economy Hangs in Balance After 'Greferendum'

Greece needs up to 60 billion euros over the next three years to stabilize its finances, according to the International Monetary Fund. The analysis comes in advance of Sunday's referendum, when Greek citizens will vote on whether to accept the latest terms of the European Union's bailout. We'll get an update on the referendum and the threat the Greek debt crisis poses to the Eurozone and to the U.S. economy.