No, technically it would be Constitutional to require disclosure of GMO for any products that actually crossed State lines under the original intent...
To be fair, I have figured out a much better way since then. Simply add to the definition of 'fraud' the practice of pretending that GMO tomatos are...
"A long terme, c'est nous qui l'emporterons... La botte cessera un jour de marteler le visage de l'homme, et l'esprit de liberté brûle avec tant de force dans sa poitrine qu'aucun lavage de cerveau, aucun totalitarisme ne peuvent l'étouffer. » -Murray Rothbard.
"Truth is treason in the empire of lies." - Ron Paul (The Revolution: A Manifesto)
"Be the change you wish to see in the world" -Gandhi