Original broadcast date: October 27, 2017. We're living in a time of intense ideological division, and it often feels impossible to bridge the gap. But can we afford not to? This hour, TED speakers explore how to communicate across the divide. Guests include social media activist Megan Phelps-Roper, social psychologist Robb Willer, former Norwegian Foreign Minister Jonas Gahr Støre, public radio host Celeste Headlee, and Rabbi Jonathan Sacks.