Unlike the U.S., some European countries have stopped using chlorine to disinfect drinking water to avoid changing the taste and potential health problems. Which approach is better?
Treating municipal water, particularly from rivers, is difficult technically and cash-strapped municipalities like Flint don't always know the latest science.
The University of Michigan-Flint puts experts from academia in the same room as Flint community members, an innovative model for educating the community and forming the public health response.
A wake-up call from Flint: the U.S. has made great gains in reducing lead exposure, but the country is still saddled with millions of miles of water-carrying lead pipes.