Here's what Noam Chomsky had to say about Alan Dershowitz:

Dershowitz is not only a remarkable liar and slanderer, but also an extreme opponent of elementary civil rights. That is crystal clear from the correspondence, reproduced below. Dershowitz flew into a fury over the exposure, and ever since has produced a series of hysterical tirades and lies concerning some entity in his fantasy world named “Chomsky,â€쳌 who lives on “planet Chomsky.â€쳌

That is his standard style when he is exposed, reaching truly grotesque levels in his efforts to discredit Norman Finkelstein (and even his mother, probably a new low in depravity) after Finkelstein’s meticulous documentation of Dershowitz’s astonishing lies in his vulgar apologetics for Israeli crimes. (From here)