Most health problems typically respond best when they are diagnosed and treated as early as possible. This is especially true for colon cancer, the fourth most commonly diagnosed type of cancer in the U.S. and the nation's second leading cancer killer. In this program we will explore the lives of colon cancer patients, and speak to leading medical experts about screening, diagnosis, and treatment. They will explain that both men and women are at risk for colon cancer, which usually develops in individuals age 50 and older. We'll discover that in many cases, early screening can actually prevent colon cancer. And if cancer is present, earlier detection means a much better chance for a longer life.