A conversation that parses the nuances of the question: Does art have to be political to be important right now? With the art critic Jed Perl, who just published Authority and Freedom: A Defense of the Arts, and the novelist Johsua Cohen, author of the acclaimed The Netanyahus: An Account of a Minor and Ultimately Even Negligible Episode in the History of a Very Famous Family, which fictionalizes the Israeli family in ways comic and serious.