This actually makes sense. If they are already here, let them stay. It is a humanitarian move with which I firmly agree.
The “humanitarian” argument would compel us to bring the entire third world population here.
I also agree - sending someone back there only increases the chance to spread the infection further.
Which then makes no sense to allow people from there to come here during an active outbreak.
This Duncan guy should never have been allowed in to the US and we should have all persons and craft that went through infected regions on lockdown.