Business and its place in society is a prominent issue at the moment. Zero hours contracts, executive pay, tax avoidance are all issues where opinion has shifted dramatically. Has Shareholder driven capitalism finally gone too far? In a special programme recorded at the Royal Academy of Engineering in front of a live audience, Evan Davis talks to the former BP CEO, Lord John Browne on his thoughts about big business as it relates to society. And asks whether it's now time to trust big business?