NSA Chief Testifies on Damage of Surveillance Leaks (Live)

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Live blog: NSA Hearing -- CNN NSA chief defends surveillance as helping stop over 50 attacks - live -- The Guardian NSA chief to talk leaks, spy programs at House committee hearings (live blog) -- al.com Live Updates: NSA Director Testifies Before House Intelligence Committee -- Legal Insurrection WNU Editor: The hearings can be watched live here.