Curiously, I always viewed flyovers as a service to patriotic fans -- and not to the team or the NFL...
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Of course, cutting off flyovers and color guards would probably suit the kind of anti-American "fans" that would attend a kneeling felon's game just fine -- plus cutting the team/league expenses -- and rewarding anti-American behavior.
Sorry -- I don't see the effectiveness in your proposal. Please enlighten me...
However, I'd still like to see a flyover -- of two fighters: one per sideline, to let loose a 20 mm burst up the sideline -- right in front of the kneeling felons.
If that isn't effective, the next flyover should be a pair of A10s with GAU-8s... '-)
Perhaps that would wake the imbeciles up to who and what they are dishonoring.