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Just for the record: Krauthammer is a medical doctor by training . I suspect he's met and spoken with more scientists in his career than the editorial board of Salon. Salon needs to be very careful in what rhetoric it allows in its pages. Conservatives must be stopped sounds a whole lot like 'Jews must be stopped'. The overheated rhetoric aimed at respectable individuals who raise legitimate questions is shading towards fascism.
After all since it is the IPCC that classifies its confidence in most of the key 'forcings' as 'low'. Why should others be pilloried for having the same skepticism?