I just read that the biggest protest in history was in protest of the U.S. invasion of Iraq in 2003. I heard about protests here in the U.S. mostly on college campuses worldwide, but I never heard of one of this scale. Did you hear about it, or is this just government propaganda controlling news and t.v.?
http://people.howstuffworks.com/largest-protest1.htm
http://people.howstuffworks.com/largest-protest1.htm