Oh, and by the way, this isn't a tariff. A tariff is a tax on imports. Tourism is an export. This isn't even really a tax. It's more like an entry fee. Hell, it's really just a toll to cross the bridge. I'm pretty certain that such a user fee would be perfectly compliant with NAFTA, were they just to call it such. But I'm still pumpin' and fleein' somewhere in downtown Buffalo.
