Moments of crisis can upend our lives, but can also help define them. This episode, TED speakers explore how a quick, compassionate or unexpected response can turn crisis into opportunity. Guests include physician Ken Kamler, motivational speaker Matt Weinstein, Melissa Fleming of the United Nations High Commissioner for Refugees, activist Nancy Lublin and photojournalist Kitra Cahana. (Original broadcast date: April 1, 2016)