Airport sculptures comprise an underappreciated category of public art. We don’t talk about them very much, but they serve a very specific artistic and social function: helping us pass and alleviate the often nervous, never-ending wait before a flight. So it’s dismaying news that the Terminal One Group Association (TOGA) at JFK airport wants to dismantle and remove a work inside that terminal, “Star Sifter,” by renowned American sculptor Alice Aycock. And the reason? No, it’s not to make space for more security checkpoints and full-body scanners — no, they want to add more food concessions.