In December, reports emerged of a 12-mile radius in Clyde, Ohio, that had been addled by 35 cancer diagnoses over a 14-year span. Residents described being scared by a simple cough; parents worried over a mere sinus-infection or stomach ache. Their fears were not unfounded; state health authorities had declared the area a "cancer-cluster." On March 29, the Natural Resource Defense Council (NRDC) and National Disease Clusters Alliance identified 42 such clusters throughout 13 U.S.