Taxes, taxes, taxes - historian challenges Davos on inequality

Dutch historian and author Rutger Bregman have become an internet sensation following his criticism of tax avoidance by the world's rich at this year's World Economic Forum in Davos, Switzerland. During his appearance on a panel entitled "The Cost of Inequality" on Friday, Bregman said not enough was being made of the issue at the annual summit, adding that it was "not rocket science".