Erin Brockovich writes powerfully of the fraudulent science disguising our national water crisis: Cancer clusters are not being reported. People in Detroit and the state of New Jersey don't have clean water. The drinking water for more than six million Americans contains unsafe levels of industrial chemicals linked to cancer and other health issues. The saga of PG&E continues to this day. Yet communities and people around the country are fighting to make an impact, and Brockovich tells us their stories.