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Brian Todd examines claims that the NSA intercepted phone calls coming out of the Vatican.
Wolf talks about recent NSA leaks, espionage and trust among allies with the German Foreign Minister, Guido Westerwelle.
A Washington Post report says the NSA tapped into overseas communications links for Yahoo and Google data centers.
An eavesdropper on the same train as ex-NSA chief Michael Hayden tweets details of a conversation he had with reporters.
RELATED STORY: Overheard on Acela: Former NSA Chief Michael Hayden
The Obama administration is dealing with unhappy allies over the latest batch of NSA leaks. Jim Sciutto reports.
RELATED STORY: Obama promises changes after latest NSA snooping disclosure
Outgoing FBI Director Robert Mueller talks to Joe Johns about the NSA surveillance program, Edward Snowden's leaks, and U.S. security after Sept. 11.
News that broke in The Situation Room: CNN's justice reporter Evan Pérez tells Brianna Keilar that a secret court ruled the NSA's surveillance program collected more Internet data than it was legally allowed to.
The partner of Glenn Greenwald, the journalist who broke the news about secret U.S. surveillance programs, was detained for nine hours at Heathrow Airport. Atika Shubert reports.