As I understand it, the federal court decision upholding the restriction of demonstrators to a pre-selected "protest area" at the Democratic convention in Boston was reluctant, and based solely on the over-riding concern about "security."
I don't agree with that decision, of course, but it surely doesn't authorize the removal of a sign-carrying demonstrator from the convention floor itself. The demonstrator was a certified delegate, a former candidate for vice-president on the Green Party ticket, I believe. Her removal was based on the content of her message, not because of "security" considerations. Mayor Daley would be proud.