September 11, 2001: I started my daily commute routine from my apartment at 76th and Lexington in Manhattan's Upper East Side to my World Trade Center (WTC) Tower 2 office. Getting to the 77th Street/Lexington Avenue subway station around my usual 7:40 a.m., I found that the downtown local was running late, but I was happy to see my three buddies on the train. They had the same commute as I did (they worked in WTC 1), and they were often feeling the morning effects of a previous night's socializing; I enjoyed teasing them on the way to work about...