Champagne or No?

On a recent coast to coast airline flight, my food service tray was accompanied by a folded card that said on the front of it “Unmask the truth…” overlaying a bottle labeled “American Champagne.” When I opened the folded card, the message inside read “No more cover-ups” and spoke to the fact that Champagne is only sparkling wine from the Champagne region of France and sparkling wine from other places is not Champagne.