Cohan Suggests Warren Work `in Silence' as Senator

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Nov. 9 (Bloomberg) -- William Cohan, author of "Money and Power: How Goldman Sachs Came to Rule the World" and a Bloomberg View columnist, talks about Democrat Elizabeth Warren's return to Washington as Massachusetts senator. He speaks with Tom Keene and Scarlet Fu on Bloomberg Television's "Surveillance." (Cohan is a Bloomberg View columnist. The opinions expressed are his own. Source: Bloomberg)