USPSTF Endorses Lung Cancer Screening CT; New Standard of Care Begins Lung cancer screening CT took its most important step toward widespread implementation last week, when the U.S. Preventive Services Task Force (USPSTF) released a draft of its forthcoming recommendation that the 9 million U.S. people meeting entry criteria for the National Lung Screening Trial (age 55-79, with 30+ pack-years smoking history and quit < 15 years) should undergo yearly low-dose lung cancer screening CT. The recommendation earned a