Handheld Cancer Detector Works in Hours Not Days

February 4 is designated as World Cancer Day, and the disease remains one of the world's leading causes of death. Last year, there were close to two million new cases of cancer worldwide and more than 600-thousand people died of the disease. But progress is being made. Cancer mortality rates have been going down for decades, and new technology is making early detection easier. VOA's Kevin Enochs reports.