They are quiteinconsistent, for example, with the rules in my own state of Pennsylvania: we have no personal exemption and thus, taxpayers are subject to tax at the first dollar.
Maintaining quite different, even inconsistent, strands going at the same time, keeps the mind open and prevents it settling too soon on one path or another.
And so we have been very active in bringing cases in the WTO when we've identified policies and actions and practices that are clearly WTO-inconsistent, and we've been quite successful in that effort.