Davos: The Biggest Themes | Davos 2015 | CNBC International

Davos 2015: The biggest themes. CNBC is at Davos 2015 for the World Economic Forum. Subscribe to CNBC International: http://bit.ly/1eiWsDq At 2015's World Economic Forum in Davos, CNBC's Hadley Gamble says that one of the biggest topics this year will be "global instability." Like us on CNBC's Facebook page http://www.facebook.com/cnbc Follow us on CNBC's Twitter accounts https://twitter.com/CNBCWorld https://twitter.com/CNBC