This appears to be for investigating how many scientist have left the US sponsored by state powers. But this also seems like bad communication on the FBI and perhaps poor publishing.

I think there is some confusion that there are more people going missing and dying in the sector while not outlining that there are more people going missing AND dying.

Or I'm just completely wrong, the only reason why I am making such assumptions because there is more information about this in the ASML case where a whisleblower leaked that china has poached ASML engineers and have given them new identities to work in chip manufacturing sector in china.