"A half-century after his amazing Triple Crown sweep, Secretariat remains the burnished icon that captured the public's imagination like no other horse. His chestnut coat glistening and his powerful muscles rippling, he stormed home by an astounding thirty-one lengths to win the 1973 Belmont Stakes and the Triple Crown as thousands of fans watched in awe. The most charismatic horse of the modern era, Secretariat graced the covers of Time, Newsweek,...