Twitter's Evan Williams: How Do We Raise Quality?

Jan. 4 (Bloomberg) -- Twitter co-founders Biz Stone and Evan Williams discuss their new publishing platform medium. TONIGHT on Charlie Rose @ 7p & 10p ET. (Source: Bloomberg)
Market Volatility: Why It's Here to Stay
59:08 - TD Ameritrade Senior Vice President of Trader Group Steve Quirk discusses the selloff in the U.S. markets and how he's playing the volatility. He speaks to Bloomberg's Angie Lau on "First Up." (Source: Bloomberg)
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