NSA leader Edward Snowden has stirred up a national election campaign in Germany, where US surveillance practices have sparked controversy. The World's host speaks with Constanze Stelzenmuller of the German Marshall Fund.
New revelations in the British newspaper The Guardian offer an in-depth description of "XKeyscore," a top secret National Security Agency program. Host Carol Hills talks with author James Bamford about the program's exceptionally broad reach.
As the markets teetered and with European leaders telling Greece to take it or leave it — literally — Greece has called off plans for a popular referendum on the European Union bailout plan, agreed to last month.