FILE - In this Aug. 20, 2008 file photo, author and biographer Robert Allan Caro is shown during an interview in New York. Book publisher Knopf announced Tuesday, Nov. 1, 2011 that fourth volume in ... more 
FILE - In this Aug. 20, 2008 file photo, author and biographer Robert Allan Caro is shown during an interview in New York. Book publisher Knopf announced Tuesday, Nov. 1, 2011 that fourth volume in Robert A. Caro's award-winning and best-selling "The Years of Lyndon Johnson" biography will be published next May. (AP Photo/Bebeto Matthews, file) less 
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Associated Press | Photo By Bebeto Matthews, file
Tue, Nov 1, 2011 12:40 PM EDT