My article's name is "CANCER TO BECOME WORLD'S LEADING KILLER"IT TOLD "Health experts it will become the world's leading killer. An agency of the World Health Organization released a report on cancer last monthThe experts say more people will die from cancer than heart disease, the current leading killer. one reason for the growing deadliness of cancer is more people smoking cigarettes in developing countries. Other things are believed to have an effect. They include high fat diets, fast food meals and reduced physical activity."