9/11 Dust Exposure Linked to 4,257 Cancer Cases; de Blasio Faces Memorial Backlash

Newly released documents reveal 4,257 firefighters, paramedics, and workers diagnosed with cancer linked to Ground Zero dust exposure, 25 years after the 9/11 attacks. The data, published under Mayor de Blasio, has sparked a campaign demanding he skip the annual memorial ceremony, though the political context is secondary to the public-health revelation.