Mrs. Tatsumi has been senior associate of the East Asia Program at the Stimson Center since 2008. Ms. Tatsumi has authored or edited several volumes, the most recent of which is North Korea: A Challenge for the US-Japan Alliance. She has also testified before the U.S. Congress and has appeared on PBS, CNN International, Voice of America, BBC International, and CNBC-Asia. A native of Tokyo, Tatsumi holds a B.A. from the International Christian University in Tokyo, and an M.A. from the Paul H. Nitze School of Advanced International Studies (SAIS) at the Johns Hopkins University in Washington DC.