Louis Henkin is a former president of the American Society of International Law and University Professor emeritus at Columbia Law School. He is now the chairman of the Center for the Study of Human Rights at Columbia University. Wikipedia*
On the C-SPAN Networks:
Louis Henkin has four videos in the C-SPAN Video Library; the first appearance was a 1988 Senate Committee as a Professor for the Law School of the Columbia University. The year with the highest average number of views per program was 1991 with an average of 108 views per program.