Discographie :
1982 : How Could Hell Be Any Worse?
1983 : Into the Unknown
1988 : Suffer
1989 : No Control
1990 : Against the Grain
1992 : Generator
1993 : Recipe for Hate
1994 : Stranger Than Fiction
1996 : The Gray Race
1998 : No Substance
2000 : The New America
2002 : The Process of Belief
2004 : The Empire Strikes First
2007 : New Maps of Hell