GIVING THANKSFor George Packer’s awesome takedown of GW Bushhttp://www.newyorker.com/arts/critics/books/2010/11/29/101129crbo_books_packer#ixzz16IV0QKqh“Decision Points” will not endure. Its prose aims for tough-minded simplicity but keeps landing on simpleminded sententiousness. Though Bush credits no collaborator, his memoirs read as if they were written by an admiring sidekick who is familiar