Comparing VAT to an Import Tax is unbelievably stupid.
Now that our government controls the domestic price of fuel in the US, it's too bad Lula doesn't seem to be in a trolish mood...
If they are smart, they just won't follow on the promise... but they haven't being doing that kind of thing recently.
Anyway, we will probably not see any trolling, because increasing the tariffs from Brazil's side would be a minor economic setback, and there are elections next year.