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And to think, they weren't even calling people commies. They should have retained Glenn to sue. Heh.
Guess what? The networks have every legal right to decline to air ads on whatever subject they feel 'inappropriate'.
That doesn't insulate them from criticism and consequencies that can/should/does result, nor excuse their participation in deliberate misinformation campaigns.
But you already knew that, didn't you, you pile of mulch.