Penn St. Investigating Scientist Over Research Misconduct. Since Michael Mann's name is Mudd in this house because he is a lying (...), I hope they revoke his tenure and press criminal charges. Then stick a (...) - The above was edited per my husband's request because he doesn't want anyone to think he encourages ad hominem attacks and I must agree he is right. Ad hominem attacks are wrong. That said, it still doesn't change the actual fact that Michael Mann is a lying liar whose fake hockey stick graph has been thoroughly debunked. Anyone, including Penn. State, who gave Mann any scientific credence should bow their head in shame and shun the hack. But I won't engage in ad hominem attacks.