The man had no decent point, and although it is out of line to punch him, public ridicule is more than acceptable. Anyone who says the U.S. Government is responsable for the 9/11 attacks is a dangerously irresponsible nit-wit, crazed by their own ideology. The theory has been debunked repeatedly by respectable sources. If a a family member slugged him one, they should spend a night in jail, and then get a party or something.
