Organizations

International Physicians for the Prevention of Nuclear War (IPPNW), Ira Helfand ’71 is Co-President: http://ippnw.org/

Physicians for Social Responsibility, co-founded by Ira Helfand ’71: http://www.psr.org/

Nuclear Threat Initiative, founded by Ted Turner and former U.S. Senator Sam Nunn:  http://www.nti.org/