Dan Mangan wrote on Feb 25^th, 2016 at 1:32pm:

Ark, the polygraph indu$try has run roughshod over too many people for far too long. Meaningful change is needed, and should come from within.

I think there are two levels to this abuse.  On the private side, it's all about money.  On the government side it's more about empire building and power. 

I think if the government admitted the polygraph was fallible, they could rest on their laurels that it is 80% effective, or whatever they claim and justify more money be spent on follow-up investigation for the 20% that fail.  Instead of terminating these applicants or on-board personnel, they could milk more money out of the system with follow-up polygraphs and BI's. 

I believe they are afraid that if they admit less than perfect accuracy their cash cow might be taken away.  Also, I think many of the law enforcement polygraphers are just thugs or incompetent investigators who enjoy ruining anybody's life, guilty or innocent.  Why work your tail off to prove a case when you can get credit and incentive awards by successfully condemning someone by only analyzing a chart and writing up a half-assed interview report.