Sorry I don't see where he doesn't have tenure. It looks like he's tenured to me which means as long as he's on topic in his discipline he's untouchable (the way it should be like it or not). He's an associate professor and that usually is a tenured rank.
We talk about academic freedom and such but this is the actual document that explains it http://www.aaup.org/AAUP/pubsres/pol...0statement.htm
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