HarperCollins snags rights after auction
                                
                                
                                    (Newser) -
                                    After a days-long bidding war, HarperCollins has obtained the rights to Amanda Knox's memoir in a $4 million deal, insiders tell the  New York Times . Divisions of Random House, Macmillan, Simon & Schuster, and Penguin all reportedly bid on the book, which Knox says will be based in part...