get on a plane you idiot
Yep, done that, Freeway is boring, Back way takes 8 hours or so.
If you mean do you have to be a US citizen to visit Las Vegas then no, Las Vegas has visitors from all over the world.
Actually, the phrase is: "What happens here, stays here," and it was created by an ad agency: R&R Partners of Las Vegas.
Your best bet is loyalty. Regulars are remembered just as the high rollers are. If you stay at the same hotel regularly, are a member of their players club, and sit at the same table every time, the...