This Appendix presents two case examples of the restrictions imposed by the Department of State on foreign scientists seeking to visit U.S. universities and of the university response to such restrictions. The first case concerns Qi Yulu, a scholar from the People’s Republic of China interested in computer software technology, whose visit to the University of Minnesota was to be restricted. The second case involves a Soviet scientist, Mikhail Y.Gololobov, whose interests involved biological and nutritional research. Dr. Gololobov’s principal placement was to be at Purdue University, with shorter visits to the Universities of New Orleans, Miami, California at Santa Cruz, and M.I.T. The correspondence reprinted here pertains to his proposed visit to M.I.T.