Is the US policy on protest two-faced?

With all the Wall Street protest clones going around it seems that the US has a disingenuous approach to protesters who occupy public land. In the Middle East during ”Arab Spring” and even before that under the Soviets with the Solidarity movement and Tiananmen Square Uncle Sam was all for protester taking the Square or park. When it is here at home it seem Uncle Sam has different way of looking at it. Are protesters only legitimate when they protest something the US wants them to protest against, but near criminals if the protest is against a group or the government state side?