Well Troll a fair number of people in and outside the US think that to some extent US actions have helped to create the terrorists that took out the WTC and bits of the Pentagon. Decisions on what actions to take are being made rather quickly, it has only been a little over a month since it happened, and your president has stated "If you're not with us you're against us," which doesn't lead easily to democratic debate. Why should stating your dissatisfaction with this state of affairs publicly be construed as unpatriotic in a democratic society? If the symbol of the flag is taken over by one group who claim to represent everybody within a country, saying "Well no actually it doesn't represent me." is a reasonable response. I'm not a fan of vandalism generally so I cannot say that burning the flag was a wonderful thing to do, but flying the flag in opposition to a peace rally isn't intelligent either and rather mixes messages.

Was there any violence at any of the peace rallies? If so who started it?