"Why not just get an IBC (Internet Business Corp) domiciled in a friendly tax environment (most places in El Caribe) open and run your trading account through that. It all can be done 'virtually' you don't have to physically be there. You can have everything setup offshore, IBC in the Caribbean, Brokerage house in the U.S. Your countries govt is non the wiser There you go, all set!"
You don't even have to do so. If you trade forex you cn open an account with funds from any country, but then the question is how are you going to get the money out from that foreign account and use them in the US????