John Meyers remembers standing at ground zero, feeling like a small speck amid mountains of debris. "Everything was pulverized," said Meyers, a former New York police officer and first-responder who provided security after the September 11 terror attacks. "It was nothing but dust."
For 20 days, during 14-hour shifts, Meyers breathed in countless chemicals; he even ate meals on site as the dust hovered. More.