In another drug war skirmish, the owners of a company selling fake penises and urine for beating drug tests have pleaded guilty to charges of conspiracy in an American federal court. The situation demonstrates how any security situation generates countermeasures. Banning outside alcohol from football games led to the Beerbelly, just as submarine warfare led to aerial sub-hunting patrols and new convoy techniques. Of course, some threats and responses are higher-risk than others.
Surely, none are worthy of concerted government attention than ferreting out the recreational marijuana users (as opposed to the users of legal alcohol) from within the workforce.