Two days after September 11, 2001, my husband Tom walked through the door, his red hair was now topped in fine, white powder which trailed down his neck and onto his shoulders. "Snowmen" is what the media called the people covered in the pulverized concrete and various debris from the collapsed Twin Towers. Tom was a construction superintendent and working on the roof of an adjacent building when the first plane hit the north tower, he left the area soon after the second plane hit. As he fled, the north tower had begun to collapse, catching him and many others in its thick, cloudy aftermath.