WASHINGTON, April 27 -- The Humane Society Legislative Fund issued the following news release: As racing commences at Churchill Downs ahead of the 150th Kentucky Derby, the Humane Society of the United States and Humane Society Legislative Fund call for change to address the devastating loss of horse life at each of the Triple Crown races last year and racing in general. The dark underbelly of the horse racing industry gets a harsh light shone on it, and the systemic exploitation of horses, in   more