If we want climbers to get a more professional reputation and cut down on accidents and deaths then we need to get the druggies and alcoholics out of the workforce. Some of the Estimator's help wanted ads emphasize that the applicant must pass a pre screening test. With pre test detoxifiers and their ability to dope their urine samples, they're probably going to pass. Or they might actually spend enough time without their drug of choice - although it's doubtful. Thankfully, random screening and a zero tolerance policy puts a lot of people out on the street looking for another job. Unfortunately, in today's market, it won't be long before they're working for someone else until their THC level once again soars off the chart or they're fired for trashing a motel room, stealing equipment, or some other crack-induced behavior. If you look at the Yahoo sites you'll see ads stating that they need employees and crews to start "tomorrow". Do we really think that they are going to test those folks? Even if they do, and they test positive, it's usually after the project is completed, or maybe they'll just ignore the results until such time as it is finished. Some states have banned random or blanket drug testing of employees without probable cause or reasonable suspicion, and a few others permit random testing only of employees in safety sensitive positions. Is a hoist operator not in a safety sensitive position? Is a ground man tagging a line not in a safety sensitive position? You betcha! Where I see the license really being beneficial is if it has the ability to be revoked if there are (fill in the blank after a careful study is done) violation(s). Granted, safeguards would have to put in place since tests can result in false positives, but this is doable. This may be a federal employment issue. I'm not sure if a former employer can tell a future employer if the man was let go specifically for using drugs, it may have to put in language such as "Didn't adhere to company policy." However, the licensing authority wouldn't have to provide that to anyone. They simply yank the climber's license after X amount of positive tests. A redemption period and rehabilitation program could be set up so that the climber could reapply after a period of one (fill in the blank after a careful study is done) year(s) and not be deprived of his or her livelihood. But it would take a considerable effort and they, their families and the industry would be better off for their attempt at getting their life back together.