Congress placed caps on employment visas for foreign graduates to ensure that American jobs are filled by American graduates." "In addition to harming American job seekers, foreign student work authorizations also put our nation at risk of technological and corporate espionage," he continued. "For example, over 33,000 Chinese student visa holders have STEM work authorizations that allow them to work in sensitive tech positions." The latest letter is not the first time that Grassley has pushed the Department of Homeland Security (DHS) to stop issuing work authorizations for foreign students in the country on a student visa. Grassley asked the secretary to provide a response on the work authorizations by Oct. 10 and also requested a staff briefing on the legal authorizations the department is using to justify the authorizations.