This is a little weird to me. Why purge cancer research? So what if China steals a cure for certain types of cancer and starts making it? Some American company makes slightly less profit? It's not a national security issue, like making sure critical infrastructure is only open to the NSA. It wouldn't even be easy to reimport a "cancer cure" pill from china into the American market. And it's way easier to reverse engineer a drug that china produces from research stolen from the US then it is to do that research in the first place.