Some years ago I was required to take a diversity training class at a major company here in Atlanta. About the second day f lecture the speaker turned to discussing profiling and I asked her a hypothetical question: If I bring a canebrake rattler in a box to the next class will you pet it? She recoiled at the absurdity of the question. "Then you are profiling," I countered. "You've never been bitten by a rattler, never known anyone personally who has being an urban person. You nothing about that individual snake, but you are very prejudicial about him." This stopped the class cold. "We have a million years of evolutionary history built into our genes that include profiling as a survival mechanism, and that isn't easy to turn off in our politically correct era. It's a strong survival mechanism." I continued. That pretty much ended the lecture that afternoon.