Rabbi J. David Bleich is Professor of Talmud (Rosh Yeshiva) at the Rabbi Isaac Elchanan Theological Seminary, an affiliate of Yeshiva University, as well as the Director of its Postgraduate Institute for the study of Talmudic Jurisprudence and Family Law. In addition, he holds the Herbert and Florence Tenzer Chair of Jewish Law and Ethics at Yeshiva University and is Professor of Law at the Cardozo School of Law. A foremost authority on Jewish law and ethics, he has written extensively on medical ethics, Jewish law and contemporary social issues, and the interface of Jewish law and the American legal system. As the spiritual leader of Congregation B'nai Jehuda in Manhattan, Rabbi Bleich teaches weekly Talmud classes and lectures on Jewish law and philosophy.