After a series of unfortunate events following this year's Triple Crown races, questions about the ethics and regulation of Throroughbred horse racing arose.

Diane Parks has lived in Marion County her entire life, and much of that life has involved breeding Thoroughbred horses. But she says much has changed.

"I think it has become more commercial," said Parks.

At a recent congressional hearing, the Thoroughbred horse racing industry was criticized for its steroid use, lack of uniformity and for producing horses with fragile blood lines.

"In all sports, human as well as animal, there is a drug problem," said Parks.

But with 38 states participating in horse racing...with all different rules, it's difficult to set standards.

"There definitely needs to be a governing body. I think there needs to be uniform rules and a level playing ground," said Parks.

And she means that literally as well.

"The thing that I believe should get some attention is the race track surface. I know they've developed a new synthetic surface that they believe is easier on the horse," said Parks.

But race critics say the problem is in the breeding of the horses, such as with Eight Belles, the philly who broke both legs at the Kentucky Derby and had to be euthanized.