Is Snapchat a Threat to Twitter and Facebook?

Dec. 11 (Bloomberg) -- Ryan Sarver, a partner at Redpoint Ventures and a former director at Twitter, discusses how he became a VC investor and the growth of mobile messaging with Emily Chang on Bloomberg Television's "Bloomberg West." (Source: Bloomberg)
How Migrants Built an Economy in Calais' Tent City
58:13 - Amid the hundreds of tents and makeshift shelters of Calais' sprawling migrant camp, a micro economy has emerged. Shops, restaurants and even a nightclub have sprung up, adding a shred of normality to a precarious, and often dangerous, existence. Bloomberg's Tom Mackenzie reports.
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