Were Cindy Sheehan's Civil Rights Violated?

Cindy was invited to the State of the Union speech by her congressional representative, Lynn Woolsey who commented "Since when is free speech conditional on whether you agree with the President? Cindy Sheehan, who gave her own flesh and blood for this disastrous war, did not violate any rules of the House of Representatives. She merely wore a shirt that highlighted the human cost of the Iraq war and expressed a view different than that of the President. Free speech and the First Amendment exist to protect dissenting statements like Ms. Sheehan's last night."