At San Francisco State University, you can do anything you want to a US flag or a Christian religious symbol: burn it, deface it, submerge it in bodily fluids. It's all good.
But step on paper copies of Hamas and Hizballah flags, and you're in a world of hurt
http://www.sfgate. com/cgi-bin/ article.cgi? f=/c/a/2007/ 02/08/EDGRJN76O6 1.DTL