And people some how think a Vaccine, which won't have 100% efficacy will somehow magically open borders. If states like WA can't accept people from NZ or for that matter the rest of Australia without quarantine, where the chances are probably <1 in 500,000 that someone has and is infectious with COVID, what chance will there ever be of someone coming from a place, say the US, where the chance of having it might be 1 in 500, even a 90% effective vaccine would only reduce the chances to 1 in 5000 ....