The people that are never looked at are those who have a legitimate reason to be there. These are the people with the keys to the kingdom.
They are the ant army that descends on the airplane. They are perceived to be part of the landscape.
The airports are very vulnerable because they don't want to spend the money it takes to screen the people that work at their facilities.
I'm not so concerned about the drug issue. The situation I'm concerned about is, what about the guns? What about the terrorists using these airports as targets?
The idea here is accessibility with no records. Anonymity at all costs.