The names of each of the nearly 3,000 victims of the Sept. 11 attacks were read at a ceremony at the World Trade Center site in New York City. Events were held nationwide, including D.C. and Pa.
Fifteen years after the Sept. 11 attacks, the remains of 40 percent of the World Trade Center victims have not been identified. Their families have been waiting for advances in DNA technology.
In 2001, NPR's Dina Temple-Raston interviewed two men who had been hauling away what was left of the World Trade Center towers. Fifteen years later, she went back to find them.
When disaster struck in 2001, New York City hadn't had a comprehensive city planning vision in decades. An exceptional flurry of urban strategizing — beyond ground zero — ensued.
A project called TransActive Grid is testing a new way to trade solar power among neighbors. For now only credits are being traded — not actual energy — using the technology that underpins bitcoin.
The injured man, visiting from Virginia, was hurt on Sunday while walking through New York's Central Park, according to the NYPD. Police think the item was just intended to make noise.