I have over 11 years of experience as an electronics/quality assurance engineer in aerospace amd nine years previous experience in the USAF. I distinctly recall the same argument being used against the MiG-17 as it spread Thud and Phantom parts all over North Vietnam.
The only thing that we agree on is that it was stupid to bury the MiBs without some sort of protective coating.
My USAF intel buddies give me a warm fuzzy feeling that we know lots, make that LOTS more than is being revealed about WMDs.