Second why you care it, casino can't have other domains? It's only casino selection which domain need, so I recommend go outside for you, breath some fresh air, because your brains seems aren't working normally, sorry dude for rude, but it's true.
I care because if the .us domain owner is a third-party person and not the casino - even if it redirects to the original website now it may change it's content to the phishing copy one day and people who used to the new domain will input their account info. Understand?
Sorry if you thought I was rude, didn't mean to be so.