Kim was admitted to study political science at Seoul National University in 1976 .
Kim was was expelled for taking part in protests against the Yushin Constitution in 1977 , before being readmitted and expelled again for violating martial law in 1980 .
Kim was admitted to study political science at Seoul National University in 1976 , but was expelled for taking part in protests against the Yushin Constitution in 1977 , before being readmitted and expelled again for violating martial law in 1980 .