The article is a bit cryptic. At first they attribute the contamination to desalinated water and later state the boat passed through a plume of radiation. Another point suggests that the Japanese .gov knew a lot of radiation had leaked and the .gov did not disclose it. Likely the entire crew will be killed by cancers, along with potentially up to millions of Japanese people.

Makes one wonder how many have consumed sea food that has been similarly irradiated.

This story reveals terrible, negligence on many levels. Given the circumstances it appears to have been entirely foreseeable if not entirely predictable. It reads as if the coming year will show very high numbers of people with cancers.