You edited your comment and removed the part about third world countries, which was probably smart, but your original point seemed to be that it's fine that millions of Americans are exposed to potentially harmful chemicals/compounds/substances because it's not as bad as third world countries. I don't know about you, but I don't want to drink water that doesn't meet regulatory standards but is maybe technically "safe". If that's the case, why even have standards/regulations at all? Just because you won't immediately die of dysentery doesn't mean there won't be long term negative effects.