Dr. Marc Siegel: Cancer took John McCain's life -- Here's the greatest tribute we could give him

Dr. Marc Siegel: Cancer took John McCain's life -- Here's the greatest tribute we could give him



Cancer is a nonpartisan killer. If there’s any issue that should be able to unite Democrats and Republicans, it should be supporting a sharp escalation in federal funding for expanded research to find out more about what causes this terrible disease and how to better prevent it and treat it.