Americans at increased odds of a potentially lethal lung cancer diagnosis may soon be able to seek out the most promising technology available to detect it early and ultimately have screening covered by insurance, including Medicare. The U.S. Preventive Services Task Force (USPSTF) recommended a high "B" rating for annual computed tomography (CT) scans for current and former smokers, aged 55 to 80, with a history of heavy smoking (two packs per day over 20 years or one pack a day over 30 years).