Since 2001, I am always somber when 9/11 arrives. My husband and I were walking beneath the South Tower of the World Trade Center when the first plane hit, a few blocks from our home. Everything went from bad to worse and we found ourselves running from the debris spewing, collapsing North Tower a little later on. It’s true that 9/11 “happened to all of us,” but with varying intensity. Having watched firefighters line up and then charge straight into their fire filled doom crystallized an indelible prism in my …