Expert on U.S.-Korean relations, U.S.-East Asian relations, and American foreign policy
- U.S. relations with North and South Korea
- Korean War
- Influence of American Exceptionalism on U.S. foreign policy
- Author of _Foreign Friends: Syngman Rhee, American Exceptionalism, and the Division of Korea_.
- Author of "True Believers: Conversations with North Koreans"
- Fulbright Scholar, Yonsei University, Seoul, Republic of Korea