Foreign journalists are not welcome in Nauru. This is because of the erosion of rule of law and national sovereignty that has occurred as a result of the tiny and impoverished nation's government hiring out the island as a location for one of Australia's concentration camps for refugees.
The point of locating the camps on remote Pacific Islands is so that the deliberate ill-treatment of refugees — which is what “deterrence” means — can happen out of sight and beyond the meagre protection of Australian law.