Stephen Costello has been working on Korean politics and policy, and US policy toward Korea and Northeast Asia for 30 years in Washington and Seoul. He is an independent analyst and consultant and director of AsiaEast, a policy platform for analysis of Korea, the East Asian region, and US interests there. He is a non-resident visiting scholar at the Institute for Korean Studies at George Washington University. During 2020 to 2021 he was a non-resident visiting researcher at the Gyeonggi Research Institute in Uijeongbu, Korea. He directed the Korea Program at the Atlantic Council from 1999 to 2004 and was director of the Kim Dae Jung Peace Foundation-USA from 1990 to 1997. His column appears in The Korea Times in Seoul.