Where should we draw the line between hate speech and simply saying things other people don’t want to hear? When some social groups can access media much more easily than others, has the idea of free speech as a free contest of ideas had its day? Should governments intervene to restrict the right to express opinions – for example, on climate change, or vaccination, which are obviously untrue? Obviously according to whom? 

These are among the urgent questions to be addressed by our panel of four distinguished philosophers, chaired by the radio and TV presenter, Ritula Shah.