Easiest thing in the world to trade it in London, Rotterdam, Dubai, or Singapore.
And leave the funds overseas. Tell the tax man to go whistel for his your money.
The goobermint, if it wishes to curb speculation (which is NOT necessarily the case, BTW), can do so quite easily: simply make NYMEX and ICE raise the spec margins -- say, treble them or quadruple them. Sure, some traders would still go everseas to trade, but many/most will find something else to trade.
Sorry for the typo!