He can, but in this politically-charged environment in which we find ourselves, he should have just quietly refused sales to whoever he deems unfit. Now, he has the full force of the government on his back. I’m sure there are Muslims who want to own firearms for reasons other than shooting up recruitment centers. Would this guy have sold guns and ammo to the whacked out kid who killed 9 blacks at church? Probably not.
That’s why I would welcome moslems and have the bacon simmering. Normal people would love it.