Racehorse now holds records for all 3 Triple Crown races
                                
                                
                                    (Newser) -
                                    Legendary racehorse Secretariat has notched a posthumous victory: The Maryland Racing Commission says he did indeed set a race record at the  Preakness in 1973 , making him the record holder for all three Triple Crown events. Owner Penny Chenery, now 90, championed the effort for official recognition of the horse'...