I was born in Toronto, Canada and received my PhD in Medical Genetics from the University of Toronto. I came to the United States in 1985 and never left, and am now an American citizen. My work has always been about detecting and characterizing DNA damage caused by environmental exposures, and how this damage is involved in human disease, primarily cancer. I have published almost 100 scientific papers and two books, and made over 300 scientific presentations to my peers and the lay public. My highest profile work has been on detecting the damage caused in unborn babies by their mother’s exposure to secondary tobacco smoke, and on how a cumulative measure of environmental exposures is predictive of human cancer. I have worked in four American cities, for National Laboratories and hospital-based Research Institutes. I came to Nova Southeastern University in 2011 and am now the Director of a large program, Project SEAMIST, to train maritime workers to handle hazardous cargoes safely. In addition, I continue my primary studies on the genetic and environmental causes of breast cancer, and have recently applied the same techniques to leukemia, autism and Gulf War syndrome.