Just because you're paranoid, it doesn't mean they aren't really out to get you.
Anyway, I predict that SCOTUS will rule 5-4 that foreign convictions do count when filling out the 4473. Scalia will likely author the (blistering)dissent, with Thomas, Kennedy, and Rhenquist joining. O'Connor will probably author the verdict with Souter, Ginsberg, Stevens, and Breyer joining.
[tinfoil] Then it will just be a matter of time before the UN or France or whoever figures out how to use that decision as the basis for forcing dis-armament upon us. Actually it will probably be the Belgians if I had to guess. They (IIRC) have a law on the books allowing them to charge foreigners with crimes againt humanity even if the events took place outside of Belgium, involved no Belgians, and basically had nothing whatsoever to do with Belgium. I also believe it allows for convictions in absentia. All they'd have to do is make private gun ownership a crime under that statute, and viola, all of us become criminals and can have our guns confiscated. [/tinfoil]