A common genetic disorder that has previously been linked to lungdisease may also put its carriers at a 70%-100% increased risk of lungcancer, according to an article released on May 26, 2008 in the Archivesof Internal Medicine, one of the JAMA/Archives journals. Alpha1-antitrypsin deficiency (α1ATD) is a amongthe most common genetic conditions affecting the population of theUnited States, especially the portion of European descent.