The death of Chadwick Boseman sparks a new national discussion about colon cancer. It also highlights racial disparities for what doctors say is among the most preventable and curable cancers. Boseman, the actor known for the lead role in the film, Black Panther, was only 43 when he died of the disease. Native American colon cancer rates are about the same as other minority groups, which are generally higher than the population as a whole. We’ll get reminders on prevention, treatment and warning signs.