Progress in the area of prevention is formulated in an environment of beliefs, called paradigms as can be seen in the next table. Some of them can be referred to as professional folklore, i.e. a widely supported set of beliefs with no real basis. For example, the “accident-prone driver” was a belief that was supported by the data in the sense that a small number of drivers do participate in a disproportionate number of accidents, it follows that the identification and removal of this drivers will reduce crashes. A more scientific analysis of the data indicate that this phenomenon can be explained simply by the random nature of the accidents, and not for a specific error-prone attitude of such drivers.