I don’t propose to cheer for the death, financial loss, or other impairment of anybody (sorry if I weep less for rulers), but I do find a silver lining in three benefits of the current Covid-19 epidemic or pandemic. These benefits are not net benefits and certainly not net benefits for everybody: only public goods, by definition, provide net benefits to everybody. First, the epidemic illustrates the benefits of free speech, even for a tyrant such as president Xi Jinping...