Re: More horses**t from the SFF
I don't think you will find anyone arguing with you about the fact that detection of NEOs is a critical program that should be pursued more extensively than it is now.
I do think that assuming the most effective system would be a manned one on the Lunar surface is debatable. More extensive Earth based systems and systems in low Earth orbit, or parked at the Lagrangian points, would probably do the job just as well, even unmanned. They would also be cheaper, and not have half the sky always hidden by the Moon's surface in the bargain.