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Globally, lung cancer kills more people than breast, prostate and blood cancers combined, but now researchers think that they might have developed a pill that prevents it. In this film, Nature explores the rapidly developing field of cancer interception. Cutting-edge research is showing an essential link between inflammation and cancer, which a global team of researchers says offers up a tantalizing opportunity. The scientists think that a blood test paired with relatively simple anti-inflammatory drugs could be all that is needed to detect those at risk and prevent lung cancer from ever developing.