As an ATCO I have the possibility of being tested for alcohol or drugs at any time whilst on duty and I don't see it as a problem!
So why should it be any different for pilots?
I don't believe it should be done in front of everybody else in the crewroom, but if companies use discretion and courtesy it can be handled very well.
The alcohol test is the easy one but my company are having real problems with the drugs test. The original test brought up false readings which caused all sorts of problems and the new tests have to be sent to a lab and you get the results within 3 days!!! which kind of defeats the object as the person carries on working (at the moment ) until the results are received
If the airline companies bring this in sensibly and with a little bit of thought it shouldn't really cause too many problems - unless you have something to hide
