Last time of wide public note was in W.A (Australia) and it was thankfully found tolerably quickly. https://www.ansto.gov.au/science/case-studies/detection-and

Last time of wide public note was in W.A (Australia) and it was thankfully found tolerably quickly. https://www.ansto.gov.au/science/case-studies/detection-and-imaging/radioactive-capsule-goes-missing-australian-outback https://www.ansto.gov.au/science/case-studies/detection-and-...