A WJLA-TV investigation delves into bad hygiene problems on the airplanes. The two-part series reveals the results from an analysis of samples collected from tray tables, armrests, doorknobs, bathrooms, pillowcases and blankets on the planes of several airlines. What the analysis finds "could make you sick ... fecal coliforms ... or, human waste." The investigation shows how passengers can get a flu, but nothing changes.The key finding is that "the threat to passengers goes far beyond ... respiratory problems ....passengers can and have died" as a result of bad hygiene in airplanes. The story reports on a record detailing how a "Korean woman suffering from tuberculosis flew fro Honolulu to Chicago and then on to Baltimore" and how "twenty-nine passengers subsequently tested positive for tuberculosis."