John Peterson, Editor of Socialist Appeal, discusses the polarization and radicalization taking place in the United States. John explains that events like the Sanders campaign and the #BlackLivesMatter movement are expressing the accumulated discontent with the status quo which has built up beneath the surface for many years. These developments have enormous implications for the spread of revolutionary ideas and the growth of the forces of Marxism in the USA and around the world. [This video was first published on 15 July]