Banned Symbols?

I'd like to start a thread as to why some symbols are banned and some are not.
An example in my country would be cross burning. Which represents the Ku Klux Klan and its white supremecy associations. The burning of the flag of the US is not banned, but protected by the first amendment.

Both are burning symbols and reflect a political statement, yet one is illegal and the other isn't. Why?

What other examples are there in the world? The swastika is an obvious one. Muhamed with a bomb in his turbin comes to mind.

Ultimately my question is..........does the banning or making a symbol illegal actually make us more tolerant of other peoples opinion, or does it just drive the 'hate' more underground and cause more trouble and decension?

What is your opinion. Is political correctness driving us apart?

Clear and present danger doesn't apply.