Surveillance: Book of the Year, Galloway's "The Four"

Scott Galloway, NYU Stern Professor and author of "The Four," told Jon Ferro and Tom Keene that we're about to see Margrethe Vestager go gangster on big tech regulation. Rich Greenfield, BTIG analyst, says it's not clear how Amazon, Apple, Facebook and Google will weaken given their size right now. Paul Sweeney, Bloomberg Intelligence Director of North American Research, says his team is beginning to analyze blockchain in the marketplace, from consumer to financial services.

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