What will be the most important priority for the future well-being of both people and our planet?
Making a transition from governance built around nation states to one with a strong system of global rules to deal with shared problems such as climate change and lethal-weapons proliferation.
Rt Hon Vince Cable MP is secretary of state for business, innovation and skills and Lib Dem MP for Twickenham, interviewed in the New Statesman, 15-21 November 2013