2 0 1 2 ▁to ▁ 2 0 1 6 . ▁ ▁From ▁ 1 9 9 9 ▁until ▁ 2 0 1 3 ▁Lee ▁was ▁an ▁Associ ate ▁in ▁Research ▁at ▁the ▁Korea ▁Institute , ▁Harvard ▁University . ▁There ▁he ▁launched ▁a ▁new ▁sem inar ▁series , ▁the ▁“ K im ▁K oo ▁Forum ▁on ▁U . S .- K ore a ▁Rel ations ”, ▁in ▁ 2 0 0 5 . ▁He ▁is ▁a ▁former ▁Research ▁Fellow ▁with ▁the ▁National ▁Asia ▁Research ▁Program , ▁a ▁joint ▁initi ative ▁by ▁the ▁National ▁Bureau ▁of ▁Asian ▁Research ▁and ▁the ▁Wood row ▁Wilson ▁International ▁Center ▁for ▁Sch ol ars . ▁ ▁Lee ▁has ▁attended ▁numerous ▁con ferences ▁as ▁a ▁speaker , ▁moder ator ▁and ▁interpreter . ▁He ▁is ▁also ▁a ▁frequent ▁comment ator ▁on ▁Korean ▁affairs ▁on ▁radio , ▁television ▁and ▁print . ▁Lee ▁has ▁also ▁test ified ▁in ▁the ▁United ▁States ▁Congress ▁to ▁provide ▁expert ▁advice ▁on ▁North ▁Korea ▁policy ▁issues . ▁ ▁Since ▁ 2 0 1 3 ▁Lee ▁has ▁been ▁playing ▁an ▁active ▁role ▁in ▁discuss ions ▁of ▁U . S . ▁North ▁Korea ▁san ctions ▁legisl ation , ▁particip ating ▁in ▁Cong r essional ▁hear ings , ▁advis ing ▁the ▁U . S . ▁House ▁Foreign ▁Affairs ▁Committee ▁and ▁Senate ▁Foreign ▁Rel ations ▁Committee , ▁as ▁well ▁as ▁making ▁a ▁strong ▁case ▁for ▁it ▁on ▁major ▁U . S . ▁media ▁out lets . ▁These ▁efforts ▁contributed ▁towards ▁a ▁bill , ▁passed ▁in ▁ 2 0 1 6 , ▁of