If you need evidence of a bias, there it is in black and white. Your statement clearly illustrates your biased opinion and presumption that LE/security "types" are more often than not dishonest when stopping people.

The inherent idiocy of prohibition aside, the profiling examples you provide were/are anomalies. The examles on 60 Minutes and the like were not even anecdodal, they were unrepresentative of the whole. That being said, I am one of the rare LE/security "types" who will admit that prohibition against drugs is as equally moronic as was the Eighteenth Amendment. The reasons it failed in the 1920's are the same reasons is fails today. We will never, ever stop it, and it is stupid to try.