FILE - In this Aug. 20, 2008 file photo, author and biographer Robert Allan Caro smiles during an interview in New York. Caro's fourth Lyndon Johnson book, "The Passage of Power," won t

 

              FILE - In this Aug. 20, 2008 file photo, author and biographer Robert Allan Caro smiles during an interview in New York. Caro
FILE - In this Aug. 20, 2008 file photo, author and biographer Robert Allan Caro smiles during an interview in New York. Caro's fourth Lyndon Johnson book, "The Passage of Power," won the National Books Critics Circle biography prize Thursday, Feb. 28, 2013. It's the third time he has been honored by the critics circle. (AP Photo/Bebeto Matthews, file)