many people especially Chinese from mainland China don’t understand American law. That’s why they broken American laws. For so many things Chinese are just taking them for granted without knowing they broken American law
for instance, American laws don’t allow Americans or American companies to sell their technologies or their certain products or services to foreign countries or foreign firms Your knowledge your skills or products belong to America not to your self when you are working for American companies American government or even working for your self on the land of America . America has a specific policy and list of knowledge,products and services that you shall not sell to foreign countries or foreign firms though you might be able to sell to American firms.
Once you are working in America you should know this. Don’t pretend you are innocent because you are not. American government or American firms tell you about this right before you start to work on these very sensitive issues