The Socorro/Zamora sighting has been explained away as misidentification of a test (air)craft...see here:
Which leads us straight into the article at Ufomedia.blogspot,regarding comparing known craft to unknown craft, and vice versa.
And, admittedly, even when I was an aspiring physicist, never did I disagree with any thing more than I disagree with the Drake equation...it needs to be recalculated...reduxed. Something. But for those who need a little brushing up, here ya go.