Never underestimate Americans ability to lie to themselves. There's a Pro-BAT article this morning in the NYT that has this whopper: " If the W.T.O. — principally a bureaucratic collaboration of America’s competitors"

Strangely enough I thought the U.S. was part of the W.T.O. and as a (still) large exporting and investing nation benefited from stable international rules. 

But regardless, Canada's GST along with various other countries' VAT taxes have been implemented throughout the economy to tax increases in value as products are manufactured. 

Would the W.T.O. really let the U.S. simply slap a tax on anything coming into the country and provide grants to anything going out without actually implementing all the stuff that goes with a VAT inside its economy? Without all the underpinnings, it sounds suspiciously like a tariff/export subsidy program.