Though the question wasn't directed to me, I'll answer it.
For various reasons I oppose anti-war demonstrations after our (presumed) invasion of Iraq, but as long as they're within certain limits -- "the right of the people peaceably to assemble, and to petition the Government for a redress of grievances" -- I wouldn't call for their prohibition. Throwing a city out of gear (e.g., blocking traffic in the business district) goes beyond those limits, and calls for dispersal and arrests, with swinging billyclubs if necessary. Disrupting military activity invites a reponse up to and including gunfire.
Let us hope our military has the leadership ... and the ammo ... to handle such a situation.
Shooting protestors peacefully blocking the entrance to a military base is just plain immoral.