"Big John" wrote in message

I've see a number of individuals who drank from wake up to the time
their eyes closed for sleep at night.

They were able to pass any and all tests of ANY kind (memory, verbal,
body activity, etc) given to them

What do you mean by "drank"? What BAC are we talking about? Seasoned
drinkers can mask the symptoms of imparment to an extent. But above .15,
it's nearly impossible.

How do you know this individual was not one whose body assimilated
alcohol in a manner that did not effect normal activities by any
measure (test)? Were the results of any impairment tests published?

No need. Impairment by any intoxicating substance is just too dangerous to
sanction. Or do you suggest that only certain types of flying be allowed
when impaired?

le moo