Finally for now the concern about sodium cyanide has abated.
I'm not entirely sure what's going on there, but it's possible it took some time to confirm which containers had been loaded and what they contained. There's a long history of contents and weights being utterly different to the manifest too - potentially dangerous for both stability and not going spontaneously on fire.
And even without the sodium cyanide there'll be plenty of other things in there that you don't want in your sushi.