Video from Caldicott Nuclear War Symposium in NYC
Steven Starr, Bruce Gagnon (at 19:57 into the video), Bill Hartung speak at the Helen Caldicott sponsored Symposium: The Dynamics of Possible Nuclear Extinction in New York City held on February 28, 2015. This was the first of two days and was live streamed.
Helen Caldicott did the moderating of this first day.
Find the entire conference film here