Paul Kimball weighs in on the Roswell Incident:
Why the "Roswell Incident" was not a crashed ET spacecraft
If there was a mothership, surely [the aliens] would have moved to recover any crashed excursion module as quickly as possible, a process which, considering the advanced technology that the aliens must possess in order to get "here" from "there" is something that they would have accomplished before Mack Brazel discovered the debris field and then altered the military, even if that involved simply disintegrating the debris field so as to leave no trace behind of the crash.
Paul's breakdown appears to make sense, but only if one subscribes to the the lamentable ufological conceit that UFOs are comprehensible vehicles akin to F-16s (the position taken by Stan Friedman, Kevin Randle and others of a stridently "nuts and bolts" persuasion).
Paul ascribes further human motivations to the hypothetical aliens when he writes of their presumed military imperative and need to eliminate debris before it can fall into human hands -- a position that reeks of anthropomorphic chauvinism. (To be fair, Paul's piece appears to be a veiled challenge to Friedman's materialistic certainties and, as such, offers a useful perspective. But are we really to accept that the Roswell crash can be satisfactorily dismissed because the aliens fail to do what we think they "should" do based on our own brief tenure as a technological species?)
I can think of any number of reasons why a nonhuman intelligence might deliberately choose to provide us with a bit of alien technology -- some benign, others ominous. Whitley Strieber's novel "Majestic," for instance, revolves around the idea that the Roswell crash was a sort of sacrificial offering intended to serve as an invitation (which we forfeited in our rush to counter the perceived threat with official denial).
Roswell may yet prove to be a genuine paranormal event. But if we're to address it meaningfully, researchers must dispense with the casual certainty that UFOs are anything so quaint as high-tech vehicles manned by inquisitive humanoids.