The rhetorical shelling heats up again between hedge fund icons Carl Icahn and Bill Ackman, this time with Mr. Icahn responding to yesterday's press release issued by Ackman commenting on their business dealings. To that end, Icahn retorts: "To get the record straight, I never asked Ackman to be my friend." He goes on to say that "Even if we were friends, I would never have invested with him because I believe he takes inordinate risks. Herbalife (HLF) I believe proves this point." HLF can turn out to be 'the mother of all short squeezes' Icahn warns, and selling short 20% of the company "leaves much to be questioned."