How Glenn and Lara each approach systemic racism ... Lara: The Yutico Briley case exposes the roots of systemic racism ... Trying to understand the equities and inequities of crime and punishment ... The differing perspectives on justice involved in the Briley case ... Are progressive criminal justice policies having an impact? ... Lara's new novel, A Good Mother ... Glenn and Lara's experiences of parenthood ... Why Glenn really left Harvard's economics department ... Glenn's rocky road as a father ...