We've been lied to about the safety of our water. It's time to rise up | Erin Brockovich

The Guardian has exposed the unreliability of water tests across the country. This goes far beyond Flint, and it's time for all of us to demand answers

Related: More than 30 US cities' water tests may underestimate lead | The daily briefing

The worst sense of security is a false one. It's hard for people to wrap their heads around the idea that those in charge - federal, state and local agencies - might be cheating the system. But, all too often, that is exactly what happens.