Any good leftist metal or rock bands?

[nvm]

I know rage against the machine but my knowledge is limited to that.
Can someone suggest any good leftist rock or metal bands?
Also any leftist punk bands but not anarchist. I know the anarchist ones. Aus Rotten is good!

[Malakangga]

nasum and napalm death

[professorchaos]

http://www.axisofjustice.org/music.htm
http://www.axisofjustice.org/radio_archive.htm

[Dr Mindbender]

sepultura is supposed to be pretty left.

Politically this must be one of my favourite album covers-
http://imagecache2.allposters.com/images/pic/LPG/51326~Sepultura-Nation-Posters.jpg