Arthur had all his records burned, so there was little chance of somebody back then uncovering the fact that his father was not yet a U.S. citizen when Chester was born. We have all the evidence we need on BHO, for we already know his father was never a citizen.
No question. We absolutely know that Obama's father was never a citizen. Obama, in fact, admitted it in his book.
Consequently, everybody in the USA involved in politics -- from FReepers to constitutional lawyers to both party & elected officials -- knew it for a fact.
Yet, nobody -- not a single person -- raised a complaint about his eligibility for office. Nobody.
Why do you suppose it is that we had to wait over two years for a bunch of amateurs to suddenly discover that he was actually ineligible?
The NBC argument will get you exactly nowhere. It's a distraction.