To the Editor: In your March '94 issue you write that "according to two Congressionally chartered think tanks … there is little evidence that drug testing improves overall worker productivity" ("From What We Gather," Eight-Penny News). Someone is missing the point in a major way if they expected productivity to increase as a result of drug testing. Silly me, but I was under the impression that drug testing was to promote and ensure safety. My previous employer had mandatory drug screening for all new hires, as well as the right to request unannounced tests for all employees as a condition of employment. The logic behind this should be crystal clear: We did not want zonked-out guys building scaffolding for subsequent
