I don't think any of us can even remember back long enough to know when the Flint MI water crisis became visible to the public eye. But, since then...not a lot has been done. People have urged the US government and current administration to help the people in Flint but little if anything has been done since that request.
Elon Musk, known for his advanced technology but also his charitable contributions, has committed himself to fixing the water crisis that is currently causing lead poisoning for residents of Flint Michigan. He tweeted out to a fan asking what he could do earlier today.