[jchw]

Oh that is a good point, I have heard of some free expression debate going on around the Israel/Palestine conflict lately.

I think the reason those don't come to mind is because even though they really do regard the interpretation of free speech law, they don't actually feel like they're about expression. When it comes to the Israel/Palestine conflict though, even the opinion that it isn't really about free expression might be controversial, so clearly it is.