And of course the point is that NASA, being a Gov agency is obviously subject to any protocols in place by the Gov dealing with National Security matters. So if they discover ANYTHING that is deemed a threat to National Security you can bet your behind that they'll cover it up.
Anything.

Originally posted by JayinAR
But of course, if something is discovered years out, it only makes sense that they would seek all the help they could get tracking its trajectory. If you've got years, you can come up with a plan.

I'm not even talking about something years out.

I suppose (probably incorrectly) most of those are amateurs, they must have limited equipment. I bet when you tally up the number of major players to some serious hardware, the list becomes a bit shorter.