I met DC in April. He was 62 years old and was principal of a Montessori school. He had smoked a half pack a day for three years in college (which makes him a former/light smoker in my book) and was in fairly good health until the December before when he developed a cough. His cough didn't get better and thanks to all the talk about lung cancer screening, he requested a chest x-ray. The x-ray revealed a mass, which led to CT scanning.