This stops people getting infected and infecting others.
- Julian Savulescu
- The Conversation
It is the justified basis for lockdowns, isolation, vaccine passports, and quarantining people who have been in high-risk areas.
It is the foundational ethical principle of any liberal society like Australia that the state should only restrict liberty if people represent a threat of harm to others, as John Stuart Mill famously articulated.
This harm can take two forms.
Firstly, it can be direct harm to other people. Imagine you are about to board a…