During a devastating nineteenth-century cholera outbreak, English physician John Snow proved that the deadly disease could hide in a drop of water. In the twentieth century, burgeoning cities would subdue cholera and typhoid by building massive filtration plants and bubbling poisonous gas through their drinking water. But in the new millennium, the demon of waterborne disease is threatening to reemerge, and the results could be catastrophic.

In this fasc... read more>>>