The material was Irridium-192 which is used for cancer treatments.
I used to work with PET scanners and we had these type of tranports from the producer to the hospital regularly. Material for PET was typically about a 72 hour 1/2 life and had to be Called up within hours of the scan to be used properly.
It wasn’t unheard of to have a smaller package misplaced - just a ton of paperwork and bureaucracy to deal with until it was found.
Reed,
There was an incident earlier this year in Mexico too.