Dear PaulR,
Thank you for responding.
My take on the NG interview, from reading the transcripts, not from watching the show (so maybe I missed some nuances that were apparent in the video), is that ER knew that both she and MR had taken lie detector tests. She also knew (and we have established, many threads back, that results are usually shared with the one being tested), that she had "passed." I think she also knew that MR's test was inconclusive -- I will agree that she shouldn't have known, but I think that she did.
I also think she knew, or intuited, that MR had been asked to take a second test. Again, whether she should have known or not is debatable.
Having worked in PR for a number of years, albeit some time ago, I know that my company used to hire media coaches (one was an ex-anchorman) to work with the each year's incoming president. They would spend days learning what to wear, what kind of makeup to allow them to put on you, how to respond to questions that you can't/shouldn't answer, etc. If they were to be interviewed by someone known to be particularly difficult, or not sympathetic to "our side," they would receive special training (I can't say the name of the organization, or the field, but it was involved in lengthy litigation).
Most guests on NG, including ER, do not receive this kind of support, and from the one of two times I've seen bits of her show, I have no doubt that she could rattle most anyone.
I can't speak for ER.
Myself, if it were my son disappeared, and I knew that my ex-husband had taken a lie detector test, and that it been judged inconclusive, and that a second test was being proposed...well, I would have just said straight out that he took one, it was inconclusive, and I hoped and prayed that he would take another one -- like right this minute. I would have used those minutes of national media attention to my (and my son's advantage). That's not what ER did, and I know that people are going to say that would be wrong to do, or mean, or what have you, but I would do it in a heartbeat.
Again, thanks for responding.