US researchers claim lab is limiting visas for foreign scientists

The National Institute of Standards and Technology (NIST), a leading US research laboratory, has been accused by several top US lawmakers of attempting to restrict the participation of foreign scientists in its research programs. In a letter sent to NIST Director Michael O. Freeman and Science Secretary Dr. Maria Zuber, House Democrats are demanding answers regarding rumors that the lab is limiting visas for international researchers, citing concerns that this could compromise the scientific integrity and diversity of US research. The lawmakers claim that the alleged visa restrictions on foreign scientists would undermine the very mission of NIST: to provide critical measurement services and scientific guidance necessary to drive innovation in various fields.