[swader999]

I'd wager the way China would exert control on miners there would be to regulate their access to electricity.

[usrusr]

And exert that control in subtle ways. "We know you, we watch you. You can do what you are doing because we permit it. When we come asking for a favor you won't think twice"

[jackTheMan]

Even easier to put a backdoor on the newer miner boards.