Fortress Davos: Inside the Armed Secret Tunnels

Bloomberg Television's Olivia Sterns explores the network of tunnels in Davos used by VIPs to move around the town.
The Benefits of EMV Credit Card Chip Technology
40:25 - Ellen Richey, Visa's chief enterprise risk officer, explains the benefits of EMV credit card chip technology. She speaks with Bloomberg's Emily Chang on "Bloomberg West." (Source: Bloomberg)
  • ‘The Martian’: $108 Million Movie Debuts This Weekend
  • What’s Behind the Labor Market is Slow Down?
  • How GE Is Appealing to the Tech Audience