Very simply:
This wasn't study abroad.
This was not a US failure in STEM education.
This wasn't b/c science is 'international'.
This was a GIANT security hole on a scale no one could discuss because ALL leading US universities were gorging.
Why? Because if any nation were actually self-destructive enough to hand me the keys to their most critical sector the way the US did since the early 1980s...well I would have done *exactly* what China did.
Who wouldn't?