Seems to me that Contradictions & Delays May be Characteristics of a Healthy Airport Security System

At airports around the country nearly two weeks after a thwarted terrorism attempt on a flight to Detroit, dozens of travelers told of remarkably different experiences with security measures. For domestic flights, many noticed little new, aside from more police dogs in terminals and, in some instances, random pat-downs and bag checks.

New Routine for Airports – Contradictions, Delays – NYTimes.com.