Mueller: U.S. not a 'big brother' state

tsr johns mueller 911 snowden benghazi_00020307.jpg
tsr johns mueller 911 snowden benghazi_00020307.jpg

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    Mueller: U.S. not a 'big brother' state

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Outgoing FBI Director Robert Mueller discusses NSA surveillance, Edward Snowden and U.S. security after Sept. 11.