Thanks Hypno. If anyone knows more about whether a NY permit should put you in the clear, please let me know. If it wasn't NYC, I'd feel much more comfortable--even though Suffolk places administrative restrictions on my permit, it is a "full" carry permit as far as the rest of the state is concerned. But not NYC; there, it isn't valid. So I'm not sure why the port police would place any special value on a NY permit as opposed to a PA one, since neither is valid in the city. OTOH, I also don't expect any sort of logic from them. Maybe they figure that starting from NY, to LaGuardia, to the destination is more "directly travelling" than going from PA to LaGuardia to destination. Not that they're correct, but I wonder if that's their rationalization. Anyway...thanks for all the info. Hope this discussion continues.