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From This Collection
In two decades since 9/11, lots of things have changed. The constant? Lasting uncertainty.
Many have been diagnosed with cancer. The exposure to toxins from the pulverized buildings "has a really, really long tail," a doctor says.
Following the 9/11 attacks, many Muslim charities in the U.S. were forced to shut down. But others were able to grow and prosper.
Veteran firefighter and 9/11 first responder Chris Russo says communicating at Ground Zero meant a lot of hand signals and yelling. How much more advanced and resilient is first responder technology today?