The US government is considering punishing American scientists who worked with Chinese researchers *years ago, retroactively*.
Michael Clemens
“The prohibited activities would include joint research, co-authorship on papers, and advising a foreign graduate student or postdoctoral fellow. The language is retroactive, meaning any interactions during the previous 5 years could make a scientist ineligible for future federal funding.”
Researchers speak out against proposal that would bar funding for U.S. scientists working with Chinese partners or training Chinese students