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 hide caption

itoggle caption 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 hide caption

itoggle caption Sergei Ilnitsky /EPA /Landov

Ever feel like someone is watching you? The Federal Trade Commission finds you could be right — if you've used a rental computer. iStockphoto hide caption

itoggle caption iStockphoto