NSA Data Collection Not Doing Any Good: Bamford

June 10 (Bloomberg) -- James Bamford, a bestselling author on U.S. intelligence agencies, discusses the need for data collection, but questions just how big the scope and reach needs to be in the fight against terrorism. He speaks on Bloomberg Television's "Bloomberg Surveillance."

Was the DNC Hack Preventable?
30:36 - Eric O'Neill, Carbon Black's national security strategist, discusses how to respond to government hacks with Bloomberg's Emily Chang on "Bloomberg West." (Source: Bloomberg)
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