What does it mean to be a liberal today?

Peculiarly, assaults on freedom often come in liberal clothing, from political correctness to burqa bans.  And day-to-day, when it comes to smoking and booze bands or ‘nudges’ to eat healthily and recycle, few self-styled liberals seem confident people should really be free.  From John Stuart Mill’s harm principle to the birth of liberalism with John Locke, in this enthralling panel debate, Frank Furedi, Lisa Appignanesi, Mark Littlewood and Nigel Warburton do battle on what it means to be a liberal today.