On Sept. 10, 2001, I was working in the newly refurbished Chelsea Market on 9th Avenue and 115th Street in Manhattan. In another life, the building was the Nabisco factory where the Oreo was invented, and where my wife’s grandfather had baked Mallomars and Fig Newtons decades earlier. The building was now a trendy tech-hub of loft spaces with exposed-brick walls upstairs and an artisan bakery downstairs. Oprah Winfrey’s television venture and a modeling agency were rumored to be our neighbors.