The Latino immigrants who make the Kentucky Derby tick

During the racing season, about 1,000 workers at Kentucky's Churchill Downs groom, exercise and take care of competitors - hard and potentially dangerous work

Walking among the green-roofed stables of America's most fabled horse racing track - Louisville's Churchill Downs in Kentucky - chaplain Joseph Del Rosario greets the men and women washing prized thoroughbreds after their morning workouts with a warm Como estas?"

Making his way past piles of hay and curious horses poking their heads out of stalls, he walks to a security gate at the edge of the track where he reads a daily devotional over the PA system twice - once in English and once in Spanish.