I wonder why the NFL league office and Commissioner hasn't told every team and owner that all NFL players must stand for the national anthem? It seems like a no-brainer. IIRC Vince Lombardi told all of his players if they uttered a word or moved from standing at attention during the National Anthem they would be fined.
IMO the kneeling players insult us and the fallen in choosing not to observe traditional etiquette when the anthem plays