There's also an implicit assumption that consuming food bought from a country with a regulatory framework for food (say, the US) doesn't usually involve the ris

There's also an implicit assumption that consuming food bought from a country with a regulatory framework for food (say, the US) doesn't usually involve the risk of said food being laced with listeria. The point being, the wbole thread is about the breakdown of food safety in the US to an illegal level, and as such, it wasn't unreasonable to consider that someone's opinion was that a risk of being supplied with US food might involve illegal foods also.