I understand the political reason for not naming the reactors/nation-states most likely responsible for the release but I don't understand the lack of context. Why wasn't short-lived iodine-131 detected along with the caesium-134, caesium-137 and ruthenium-103? How do the measured levels of the long-lived caesium/ruthenium isotopes compare to known events like Fukushima? How do these measured levels compare to known nuclear weapon tests?

I'm worried about the geopolitical implications, not the global health implications.