In this letter to the editor, the author supports his belief that widespread random testing of transportation workers is not a cost-effective way of improving the safety, health, performance, and productivity of those workers. He cites several cases of drug testing following a transportation accident (air, rail, and highway) where the test results were questionable and where the media gave much publicity to worker drug use, but failed to do so to the actual findings of more extensive investigations which revealed other causes, such as fatigue or failure to exercise due care. He cites the National Master Freight Agreement Drug Testing Program as an example of the confused efforts at trying to interpret the meaning of marijuana concentrations. (A)
Samenvatting