German Chancellor Angela Merkel and President Obama in September at the G20 summit in Russia. She and other leaders have objected after hearing that the NSA was listening to their phone calls.
Anton Denisov/Host photo agency/Getty Images
Pakistani Army soldiers guard nuclear-capable missiles at the International Defence Exhibition in Karachi in 2008. The Washington Post reports that concern over their security is a "blind spot" in U.S. intelligence efforts.
Rizwan Tabassum/AFP/Getty Images
In Moscow's Red Square, people still line up to visit Lenin's tomb. Though the Cold War is over, Russia and the U.S. keep watchful eyes on each other. Tuesday, Russian officials claimed to have uncovered a CIA spy.
Sergei Ilnitsky /EPA /Landov