Ok wait Zandroid. Lie deteCtions at what point? Every time they appear on a broadcast? To get a 'Truthful UFO Researcher' license of some sort?
Who would administer these tests? And where?
And polygraphs have proven to be unreliable in many instances.
Don't get me wrong, I'm all for separating the wheat from the chaff, but maybe open exposure and ridicule (i.e., places like The Paracast - The Paranormal's Polygraph - wink, wink), are much better.
Just think, some bozo that you know is a BS'er could possibly pass a polygraph and then we would have to deal with that. No thanks.
Think of this, what if someone is a pathological liar, and I'll just throw out some names for example (not that they are pathological liars) -- but say for the sake of this hypothetical argument they are. Bill Knell, Billy Meiers. Ok, if they were pathological liars, then they could very possibly pass a polygraph because they would often actually believe their own lies as they are speaking them, and the polygraph would not detect any biological anomalies.
Sorry to beat that down. Just don't think it is a good idea. A polygraph can be used in certain circumstances when the issue is narrow and a focused investigation can be done, but not as some general litmus test.