There's still ongoing exposure from lead paint, which was only phased out in the US around 1979. And the soil in cities is loaded with lead. People grow stuff in that dirt and eat the plants, not realizing the risk. Dust gets tracked in and ends up ingested in various ways as well.
It's a slow burn, and like you said, not linked to well-defined current events. The most you can say is "government continues not to do much about pervasive poisoning of population".
It's a slow burn, and like you said, not linked to well-defined current events. The most you can say is "government continues not to do much about pervasive poisoning of population".