Water is everywhere in the aftermath of Hurricane Sandy – in basements, on the streets and in transit systems – but the one place that flood water is most dangerous is in your body. ABC News chief health and medical editor Dr. Richard Besser collected floodwater and drinking water in some of the areas hit hardest by Sandy and had them tested at The Ambient Group lab. The floodwater collected in Lower Manhattan tested positive for gasoline and two types of bacteria found in sewage: E. coli and coliform. “Very dangerous,” Besser said. “Make sure you wear protective gear if...