i got to interview marshall in 1989 at the end of his career, and of his life. it was a rich time and he was willing to talk. it's been a great gift for me. the book is continuing to sell and was reissued. on a personal basis, let me say thank you and it's a thrill to be among america's greatest biographers. >> greg: i am glad i could help you with that book. >> dana: really impressive. congratulations. i've got one. too bad just isn't here. mary sedgwick, she has been legally blind since 2003 and she recently got the chance to see her guide dog for the first time thanks to a pair of high tech glasses. she shared the video of her very emotional moment. watch this. >> oh!