“For us, today, how art behaves in evil times requires a code of practice, an ethical consensus of what to do when a ruler with blood-stained hands calls for cultural distraction. The lesson of the Hitler era is that artists must take responsibility for their actions, and inaction. But how? We need a kind of Geneva Convention, which protects prisoners of war, to define the rights and duties of an artist under duress. Seventy years after the outbreak of the Second World War, that debate has barely begun.”