As a professional analyst I never take anything on faith, especially when it supports my own beliefs. If I am to truly have an open mind, which is essential in order to see the truth, I must constantly question those things that most support my point of view, for those are the things easiest to gloss over and accept as fact. In analysis, the first thing you learn is that everyone is biased, no matter how open they try to be. We all have blind spots, and the best way to minimize the bias within ourselves that we cannot see is to be most skeptical of any data that agrees with our predisposition.