Johnn:

I asked myself this same question over and over after my  rude awakening to the polygraph. There's no rhyme or reason to the FBI's polygraph process. The whole thing is ridiculous beyond belief. If you are looking for sound logic in the FBI, you are definitely looking in the wrong place.  

Of course, it makes sense that if one is accused of lying about drugs and/or national security that he/she would also be accused of lying on the application. I was also accused of lying about drugs, but was not accused of lying on my application--both relevant questions within the same series for me. If one "fails" only a single question within the series, he/she fails the entire series. There is no differentiation in the final polygraph report, which means you never really know which questions you actually failed because they are redacted. One only learns the final determination as to whether he/she is NDI, DI or INC on  each series.     

I got word today that I passed.

Now, i'm just worried about my BI.  I have a vindictive ex who's still mad 6 years later about custody and support issues.