Can genetics play a role in crafting left social policy? Or should we not touch those ideas ever again–even with a 10 foot pole? Paige Harden’s new book, “The Genetic Lottery: Why DNA Matters for Social Equality” makes a forceful case for an egalitarian politics informed by DNA.  However, geneticist Joseph Graves critiqued the book in the pages of the Lancet, arguing that we do not need sophisticated genetic knowledge to make a more socially just world. Managing producer Marc Apollonio guest hosts, talking to both.