Giorgos Gerapetritis, the Greek State Minister, joins Christiane Amanpour amid the migrant crisis at the Turkish-Greek border. As the Greek government's point man for handling this worsening crisis, he explains how President Erdogan's actions have opened the floodgates, but "no excessive violence" has been used in handling it. Susan Glasser, staff writer at The New Yorker, and Vali Nasr, professor at Johns Hopkins university, weigh in on the geopolitical challenges that caused this crisis. They analyze the situation in Syria and Afghanistan. Then our Michel Martin sits down with Peter Harckham, a Senator from New York's 40th District, for a candid conversation about his battle with alcoholism and how he was inspired to tackle the worsening opioid crisis in New York head on.To learn more about how CNN protects listener privacy, visit cnn.com/privacyLearn more about your ad choices. Visit podcastchoices.com/adchoices