mr. swanson? i'm tryin' out some cop entrances. oh, well, i'm here to help you out while bonnie's gone.well, i did work for that old lady down the street. meg, could you come here, please? what is it? could you see if i'm getting a bed sore on my back? sure. it looks fine to me, ma'am. thank you, dear. i must have just slept on it wrong. (laughing) i stole meg's cutaway. (whooshing) what the hell is going on in here? well, brian, i thought about what you said at the park, and i've decided you're right. i have gone soft. i've lost my sadistic streak. so i've built a concentrated neural enhancement device, designed to boost my evil side. all right, shall we take this thing for a spin? now, when i say so, hit that button. okay, hit it. (electronic whirring) (whirring grows louder) (whooshing) well, how do you feel? i don't know. i don't feel any different. well, why don't you try insulting me? yeah, okay. um, sometimes you chase helicopters. that's kind of lame. yeah. um... besides, i do that to protect the house.

mr. mack, and we will begin taking those in just a minute. just want to let you know we have several hours of live coverage coming up today. james swansonill be doing a call-in program after kenneth mack is done. president has been shot about the assassination of jfk. that's coming up after kenneth mack. then david will be back in the history and biography tent. he'll join us about joseph kennedy. he'll join us for a call in following that. we'll be talking to steve who is written a book on war of 1812, and marie will be talking in the history of biography tent later on this afternoon. that is the rest of our coverage today. we'll be live all day again tomorrow down here on the mall. you can find the full schedule at booktv.org. by the way, you can also get schedule updates by following us on facebook. facebook.com/booktv. or on twitter @booktv is our twitter handle. alice in baltimore, what is your question for kenneth mack? >> caller: first of all, i want to compliment him on the wonderful job he had done with the book. i'm from baltimore the home of thurgood marshall. we're proud of him and his contributions. i want to ask what was t