Z:gnu-www-ja-plan-nine--33f8af-It is unacceptable for a licen/en

It is unacceptable for a license to require compliance with US export control regulations. Laws being what they are, these regulations apply in certain situations regardless of whether they are mentioned in a license; however, requiring them as a license condition can extend their reach to people and activities outside the US government's jurisdiction, and that is definitely wrong.