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Pam Brown reports on federal law enforcement flying small planes loaded with gear to spy on Americans' cell phone calls.
The Guardian newspaper reports Britain spied on foreign politicians and officials during the 2009 G-20 summit.
RELATED STORY: Snowden claims online Obama expanded 'abusive' security programs
Brian Todd reports on claims by Russia's counterintelligence agency to have taken down a CIA spy.
RELATED STORY: Russia orders expulsion of U.S. diplomat accused of being CIA agent
CNN's Brian Todd talks to a former North Korean spy who defected and is now fears the worst amid the latest threats.
Venezuelan president Hugo Chavez claims his forces captured a U.S. spy. CNN's Brian Todd reports.
RELATED STORY: Venezuela says U.S. detainee was a Marine