last year when michael griffin, the head of nasa, told national public radio that he believes global warming isn't a problem worth wrestling with, well, he was attacked. you'd think that griffin was entitled it off express his viewpoint. he holds a ph.d. in aerospace engineering. he holds five masters degrees. he's a member of the national academy of engineering, and the international academy of astronautics, he was unanimously confirmed to head nasa by the united states senate. he oversees the single biggest climate research budget, $1.1 billion a year. yet, no sooner did he express his opinion then he was called an idiot. he was set to be in denial. he was called a fool. and he was called surprisingly naive. he was called totally clueless or a deep global warming idealog by his colleagues and he apologized and the public hasn't heard from him on the subject and the public haven't heard from hundreds of others who don't want to subject themselves to the type of abuse that griffin faced. i was at a literary function in toronto last year and happened to sit next to a global warming den