This could be understandable if some rationale was provided, but it's worse than that: > Neither agency has publicly issued new formal guidance describing these requirements. Instead, officials are informing grantees individually, leaving researchers confused and concerned. They've not even made it official. They're just randomly flagging.
The article mentions, oddly enough at literally the very bottom, that one of the main laws being used is the 'Wolf Amendment' [1], passed in 2011. It's what prevented Chinese from working on the ISS and arguably is why China now has its own space station. It's an extremely dumb law that's been passed and reauthorized repeatedly by every single administration and Congress since Obama who it was passed under. Just quot…
Scientists and engineers aren't any more moral than the rest of us, and interactions between them across national boundaries raises security risks.