Note I think it is the FBI doing it not China is the thing they need some one to blame is the thing. The bad ones that is is the thing. This is likely what was going on… why well it would be easy to track a ip outside the US is the thing can could be cut is the reality
To maintain an algorithm functioning it is not one command it is a lot of commands in this way. Each one carries a time stamp in the server. So this is not as hard to see ad people think if you know where to look is all.
This is pretty basic stuff computers are not magic they fallow commands is the thing.