Kongdan (Katy) Oh, whose parents fled from the northern half of Korea in 1945, has worked for more than thirty years as a policy analyst at the RAND Corporation and then at the Institute for Defense Analyses. Ralph Hassig taught for five years in Asia as an adjunct professor of psychology at the University of Maryland University College.. He and his wife, Kongdan Oh, are the authors of North Korea through the Looking Glass and The Hidden People of North Korea.