Rachel Bronson is the president and CEO of the Bulletin of the Atomic Scientists. She oversees the publishing programs, management of the Doomsday Clock, and a growing set of activities around nuclear risk, climate change, and disruptive technologies. Before joining the Bulletin, Bronson served as the vice president of studies at the Chicago Council on Global Affairs. She also taught "Global Energy " as an adjunct professor at the Kellogg School of Management.

Prior to moving to Chicago, Bronson served as senior fellow and director of Middle East studies at the Council on Foreign Relations in New York. Earlier positions include senior fellow for international security affairs at the Center for Strategic and International Studies, fellow at Harvard University's Belfer Center for Science and International Affairs, and adjunct professor at Columbia University. Bronson's book, Thicker than Oil: America's Uneasy Partnership with Saudi Arabia (Oxford University Press, 2006), has been translated into Japanese and was published in paperback in June 2008.

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