I struggle to believe that Wazza wrote the article as well.
IC's would simply be a floating tarriff. Where he believes that countries like China would eat the cost, they are 99% more likely to go the other way and peg their currency 10% lower. Other markets that are net importers from the U.S. would simply impliment the same IC's, so the American imports become 10% more expensive and eventually the result would be everyone charging an extra 10% IC. Can you imagine the response from the U.S. if another country implimented this when the U.S. was trading in surplus ! Poor form Wazza. You should know that imposing taxes like this simply allows the Squanderville people to continue squandering to their own peril.
