Wall Street pain continues; Snapchat/Viacom deal; Bloomberg presidential talk

Stock markets around the world being rattled by a stunning development in Japan. Plus, Viacom has a new leader...and now a new deal. How an expanded agreement with Snapchat is a sign the old-line media company is moving past the days of Sumner Redstone. And as voters go to the polls in the first-in-the nation primary in New Hampshire, billionaire Mike Bloomberg fuels speculation he many throw his hat into the ring as an independent candidate for President.