michael mann. he won his long-sought legal battle against two conservative writers. in 2012, the man falsely claimed that mann had manipulated data in his research that showed a dramatically warming planet, and they compared him to convicted child molester jerry sandusky, saying that instead of molesting children, mann was molesting data. juries in d.c. found that the pair made their statements with maliciousness, spite, ill will, vengeance, or deliberate intent to harm, and they awarded him more than $1 million in damages, and here he is now with us, michael mann, presidential distinguished officer, director of the center for science, thinking ability, and the media at u penn. also the author of the book our fragile moment. michael, 12 years is a long time to have to fight here. how do you feel today? >> yeah, it is. it's good to be with you, breanna. and i feel good, and i'll tell you why. it isn't just about me and defending my science from scurrilous attacks and defamatory claims. it's really about the defensive science. you know, it's appropriate to debate scien