Comment by roenxi

It doesn't speak volumes. It just says that the people being hired had enough status that they don't have to go through what amounts to an initiation ritual.

Polygraphs appear to be another sad outcrop from the same pseudoscience formation as phrenology or witch-ducking; basically theatre to legitimise people exercising power in a way they were already going to do. The fact that it gets used speaks more volumes about the culture in intelligence services than the people who may or may not undergo the test.