this is the sort of dirty laundry one doesn't want to fall into the hands of those who might potentially try distort things. >> e-mails talking about dirty laundry and distortion and deletion and tricks. it does mock the integrity of the scientific method and those of us who are really serious about science. >> sean: e-mails that show manipulation of data were incriminating. but written discussions about does -- does regard records proved to be most damning. >> there's an e-mail from jones to m ann asking him to delete any e-mails he had related to the ipcc report and that he was going to ask other colleagues to do the same. >> sean: it doesn't stop there. the hockey graph team was determined to prevent opposing view points from gaining traction. in 2005 they attempted to