Lord Toby Harris, Chair of the National Preparedness Commission, has written a thought-provoking article for Resilience First exploring the new perspective that, alongside black elephants, swans and jellyfish, we now must now also learn to contend with TUNA; reinforcing the call for threat-agnostic approaches to national preparedness and resilience in response to the new Turbulent, Uncertain, Novel and Ambiguous (Tuna) times that we live in.