The wealthiest 62 individuals now have as much wealth as half of the rest of us - 3.6 billion people. That's according to an Oxfam report on inequality released this week. Jim Clarken of Oxfam Ireland and Foriegn Affairs Correspondent Ruadhan Mac Cormaic discuss the implications of this striking inequality and whether it is responsible for poverty.

In part two Washington Correspondent Simon Carswell looks at Senator Bernie Sanders' uptick in the polls. Can he really challenge Hillary Clinton for the Democratic nomination?