But university leaders expect fewer students from other countries this fall as visa uncertainty and changing federal immigration policies create doubt among prospective students. Linke said SDSU expects fewer international students this fall than in previous years, reflecting nationwide suspense surrounding federal immigration policies. Comparable increases occurred at the University of South Dakota, Dakota State University and the remaining public universities. That's the standard federal work visa that allows U.S. businesses to temporarily employ foreign professionals in specialized occupations requiring a college degree. Few South Dakota employers illustrate that need more clearly than Wall Drug, the tourist stop advertised around the world through road signs.