tonight and for helping us to understand this. the hard cover edition of "american grace" co-authored with david campbell came out last year. the paperback will appear early next year. you can learn more on the website, which is americangrace.org, which we will link to from our blog. professor putnam, thank you again for your time tonight. i appreciate it. >> thank you, rachel. all right. dick cheney will soon be on a media blitz for his hotly anticipated new book. at the end of the show, i will make a shameless appeal for him to add just one more stop to his tour! we'll be right back. ♪ this is our pool. ♪ our fireworks. ♪ and our slip and slide. you have your idea of summer fun, and we have ours. now during the summer event get an exceptionally engineered mercedes-benz for an exceptional price. but hurry, this offer ends august 31st.