Racehorse with champion bloodlines sold to slaughter for $50 (US)

By Kim Segal and John Zarrella, CNN MIAMI, Florida (CNN) -- Freedom's Flight is a beautiful thoroughbred with an impressive pedigree. His bloodlines can be traced to two of the greatest race horses of all time, Seattle Slew and Secretariat. But, unlike his kinship, Freedom's Flight's racing career ended before it had even started. It…