Referred to in a news report as being 'like looking for a needle in a haystack', but with the convenience that the needle is detectable at quite a distance (10s of metres), assuming it hasn't fallen down a crack or been covered by something.
It's certainly makes the job of finding a needle in a haystack easier if that needle is giving off ionising radiation!
Maybe we need to invent geiger counters for needles!
Maybe we need to invent radioactive needles, to make them easier to find in case they get lost in haystacks.
That's some A+ Cave Johnson level thinking!
Or you could use a metaldetector?
Like looking for a capsule in the outback
This must be some heavy shit. Is Australia building a nuclear bomb ?