Jacquelin Febrillet was 26 years old on September 11, 2001 when jihadist hijackers flew two passenger jets into the World Trade Center just two blocks from where she worked. Fifteen years after the attacks that day, Febrillet, by then a mother of three, was diagnosed with metastatic cancer. Unlike Febrillet, Richard Fahrer, then 19, wasn’t in the area on 9/11, but he regularly worked as a land surveyor between 2001 and 2003 in south Manhattan, where the Twin Towers came crashing down.