Climate Scientist Mann Faces Obstacles to Winning Libel Lawsuit, Legal Experts Say - ScienceInsider

http://news.sciencemag.org/scienceinsider/2012/10/climate-scientist-mann-faces-obs.html
Mann's complaint argues that the defendants acted with actual malice because they allegedly read and rejected the investigations that cleared him of wrongdoing. Simberg and Steyn have questioned the investigators' independence and findings, with Steyn calling the Penn State investigation a "joke" in his blog. But it's unclear whether Steyn and Simberg and their publications had to accept the investigations as true, Anderson says: "I think that's a remaining question to be decided."