This morning I went out for a long walk before the Indian Summer heat blanketed the city. I started down ninth through Chelsea, then when ninth ended, I continued down the length of Hudson through the Village, then into Tribeca and ending of course in the financial district and the site of the new Freedom tower. As I walked down through lower Manhattan with its' cobblestone streets and trendy shops and restaurants, I tried to imagine what it all must have looked like ten years ago coated in a layer of ash and dust. Hard to imagine.