Unless you're living under a rock, you've heard all about the sudden death of 21 polo ponies yesterday in Wellington, Florida. Watch video. I was just watching the news and apparently rumor has it they had a reaction to tainted steroids administered by an Argentine vet not licensed to practice here.
(P.S. You guys will never be able to keep this shit quiet. What do you think your grooms talk about? Good luck getting a polo groom to sign a confidentiality agreement. Every one I've ever met talked nonstop about their boss's horse care or lack thereof. Polo is a very small world.)