So maybe the pet potty area at JFK airport wasn't ENTIRELY altruistic...

I found another story at OregonLive.com: "Portland airport will get indoor bathroom for pets."

This article, though, provides information that the JFK article (which you can find HERE if you want to refresh your memory) did not- namely, that there are new federal guidelines regarding areas where service dogs can take bathroom breaks... guidelines with which airports over a certain size must comply.