The 9/11 ceremony at Ground Zero will fall silent a seventh time on Friday, a first, honouring nearly 10,000 people killed by illnesses from the toxic dust, a toll that now dwarfs the 2,977 who died that morning.
The National September 11 Memorial and Museum added the tribute for the 25th anniversary, sounding a bell for the responders, cleanup workers, and lower Manhattan residents whose deaths trace back to the plume that hung over the site for months.
