[Chris Talk]

So far, we have had at least 56 years-- if not well more, since first contact of the US government with aliens, so the national security can be compared only by looking at where we have been since [Roswell '47?] compared to what it was before, this is history, not future speculation.

Perhaps what you mean is, what would be the implications of a PUBLIC ADMISSION OR REVELATION, whether the govt did so voluntarily, or was forced to by massive appearance of the aliens or some other factor...

My own view is, the American people are a lot more able to handle this than the govt gives them credit for, and perhaps would remain quite stable. Originally there was, of course, fear that some persons would worship the aliens as gods, others would become totally passive and just say (like a pet cat) just meow for food from their "godlike" owners, and stop working or showing any initiative. Others would just go mad, the govt feared, and start shooting, not that that would hurt the aliens! Maybe that even explains the gun control as well as a thousand other seemingly nutty things the govt has imposed on us since 1947.

As to your second question, many, many contingency plans already exist and we are probably well into one or more of them. But first contact occurred before most of us were born, even if we are now grey and grandparents. They are as prepared as they can get. Some of the orig contingency plans from the 1947-53 period are publicly published and available IIRC.

[Momaw Nadon]

Perhaps what you mean is, what would be the implications of a PUBLIC ADMISSION OR REVELATION, whether the govt did so voluntarily, or was forced to by massive appearance of the aliens or some other factor...

Do you have any idea or guess as to when public admission, revelation or disclosure will happen?