We dare not forget that we are the heirs of that first revolution.
John F. Kennedy
where your opinions are noted, and then summarily ignored

The 1st Amendment Under Attack

Feb 2012 - HR 347 Signed Into Law

In essence, it prohibits demonstrators from speaking out if the secret service is present. For instance, you can't shout dissenting speech at David Axlerod as he walks by because he's protected by the secret service.

Looks to me like no-free-speech zones became mobile with this bill.