Excuse me, I was wondering about the legalities surrounding the use of Orcas in the United States. I understand they're magnificent creatures, but I'm not sure if they're allowed to be kept or utilized for any purpose in the country. Could you please clarify the situation for me? Are there any specific regulations or laws that govern the use of Orcas in the US? And if so, what are they? I'd really appreciate your help on this matter.