Flint, Mich., is certainly not the first U.S. city to see its water contaminated by aging pipes. And, unless the many American cities with aging lead pipes get to work quickly, it will not be the last, either.

The poisoned tap water of Flint serves as a warning sign to city officials throughout the U.S: Lead pipes installed in cities 100 or more years ago need to be replaced. More details here.

Source: Fortune