GZERO WORLD with Ian Bremmer: 50 Years After the Vietnam War

It's been fifty years since Saigon fell or was liberated, depending on whom you ask. Two Vietnamese Americans with personal ties to the war reflect on the milestone anniversary. Viet Thanh Nguyen is the Pulitzer Prize-winning author of "The Sympathizer," now an HBO TV series, and Mai Elliott is the author of "The Sacred Willow" about a Vietnamese family over four generations.