WHO has strongly recommend to keep wearing mask even for full vaccinated people because of this Delta variant. CDC hasn't responded yet.
Some of my wife's friends and family are in Australia and SE Asia and they are currently in lockdown. Delta variant has been the cause of the spike of new cases.
Some part of US are seeing spikes too. I just hope that's not the case for California. Well, maybe since the governor still facing election recall even after reopening the state, maybe he'll end up closing up again.
If US wants to be protected in some degree, we need to restrict any international travel coming into US.