'Something is drastically wrong': Santa Anita closes again after horse death toll rises to 21

On the eve of some of the biggest races of the season, California's storied Santa Anita racetrack is closed indefinitely after horses continue to die on its track.

Twenty-one horses have died in two months, a staggering rate even in a sport where horses regularly break down. By this point in Santa Anita's 2017-18 winter season, nine horses had died.