A congressional investigation finds the Pentagon has funded research involving collaboration with Chinese entities linked to China's defense sector. Many of these entities are blacklisted by the U.S. government. The report by House Republicans on the Select Committee on China warns that U.S. technological know-how is being diverted to modernize China's military. Friday's report highlights concerns about the Defense Department's research policies, which it says have allowed foreign adversaries to exploit American research. Committee Chairman Rep. John Moolenaar has proposed a bill to prohibit defense funding for projects involving problematic Chinese entities. Beijing has said that science and tech cooperation is mutually beneficial and helps the two sides cope with global challenges.