I find myself agreeing with Plawrence on this one(yo plawrence don't let this go to your head this will probably be the only time )

As much as we may/may not agree with it these girls have the right to sing about whatever they choose. And if they or their grandfather choose to show the Swastika then again that's their right.

To curtail their freedom of speech would be going down a very slippery slope. Cause then we could possibly loose the first amendment altogether. Someone will always have a problem with another persons views/beliefs, that will never change. Hell I have several friends who claim the holocaust never happened.