Heavy Metals

I was outraged when I found out that childhood lead poisoning actually led to a number of children deaths! That is beyond being frustrating! Every child death is a huge tragedy for a family and each person.
The lead exposure issue means that because of manufacturers and for someone else's profit there was that much harm to children! It is so unfair! I imagine myself living in a situation where I can't afford choosing, testing or preventing my home and/or community from lead exposure. And before the government or officials realize that the provided harm is so much terrifying, I do not have any tools to help it. I would not be able to protect my children from lead poisoning. That is not because I don't love them or not doing everything I can for them.

Even though, as it was described in both articles, the issue was addressed; my question is when we will first think and test before causing dangerous exposures? These exposures, e.g., lead poisoning, in fact, are the consequences of our actions.  Therefore, we first cause harm and then heroically deal with it.