變更

* "[https://web.archive.org/web/20130827163551/http://www.ushmm.org/genocide/analysis/details.php?content=2002-05-13-01 American Responses to Genocide and Mass Violence in the Past]," panel at the U.S. Holocaust Memorial Museum, May 13, 2002.

* [https://web.archive.org/web/20130802212644/http://www.ushmm.org/genocide/analysis/details.php?content=2002-03-26 Discussion of ''A Problem from Hell''], U.S. Holocaust Memorial Museum, March 26, 2002.