ID3 vTOPE NPRTCOM TALB Talk of the NationTIT2 # Heartbreak at the Preakness StakesTCOP 2006TRCK 4TCON COMM nprComment Washington Post horse racing columnist Andy Beyer talks about Barbaro's horrific injury in Saturday's Preakness, and what it means for the struggling sport of horse racing.TPE1 NPRTYER 2006 P , g( 0@ڱ$|[