The FDA has banned some types of imported Chinese seafood, primarily farmed fish. The problem is contamination with drugs used to treat fish, which may not be safe for people who eat the seafood.
Yikes, this is a scary time for the seafood business. While US seafood may not be tainted by the ban, consumer confidence in seafood will definitely suffer. And how many people won't bother to notice the details? Especially since seafood labeling is not exactly helpful in finding out everything you want to know.
Would you look at the back of this can to find "product of China" before deciding whether to buy? Note that this tuna is not subject to the ban.
Maybe this will spur improvements in seafood labeling?