I don't see what rights are being infringed.
They are making a militarized force of 350 people who are responsible to controlling both terrorism and protesters.
Terrorism and protesters should never be used in the same sentence for this kind of thing. People have a RIGHT to protest; pointing high caliber machine guns at them scare people and make them go away.
All in the name of counter-terrorism. I wish 9/11 never happened :(.