Rather a lot... but alarmism aside, this is not a good time for free speech in America. I guess we'll get it sorted out eventually, but it would have been better had it never come to pass.
I tend to view it as a manifestation of the "last gasp of the Establishment Media"-- it was never a popular idea with voters, but the press promoted CFR madly, under their general-purpose panic mantra "We Gotta Do Something About This!"
I suspect that like with Prohibition, creative Americans will find a way to dodge around it... like, maybe, the offshore Pirate Radio station "Radio Free America..."