Tom,
There's little scientific credibility in a PR event for an old man with an invited audience. I wrote an article on this some years ago. The interesting thing is all my web links are either now dead or have been tampered with! Wide records of the annual symposiums on relativistic astrophysics all exist, except for some reason the Fifth! If ever any clumsy footprint evidence existed that seems like it!
But pdf's and printed matter remain, as does the science. 'Venus Express' has found an 'unexpected' thick atmosphere, giving refractive light delays way over the 2ns predicted from curvature. Unless Shapiro went there first and knew how thick it was his removal of 90% of the delay to leave the 2ns was just a 'stab in the dark.' That was the 'systematic error' Dicke, Wallis etc found, so was why he was 'pulled' as keynote speaker.
If it was some attempt to mislead the Russians it failed anyway. Svetlana Tolchelnikova-Murri (Pulkovo Observatory) pointed out the error shortly afterwards but her paper didn't get published in the US. But was Shapiro's 1971 paper 'pulled'? Hell was it! So when the model was later used on Jupiter and proved to be rubbish there was no end of confusion and argument!
I could send you some pdf's direct, but the Jupiter stuff is all still available. As is a quote from a 1965 letter to Shapiro in the AJ on a realted issue; "The main reason that your newer results appear to look better, is that your group found it could eliminate the large daily variations by changing to a constant observing time (12:00 UT), even when the planet was not observed or in some cases was not even visible."(J. V. Evans, etal., Astron. J. 70, 486- 1965) . Just a few relevant papers;
Evans, J. V., R. P. Ingalls, 1968: Absorption of Radar Signals by the Atmosphere of Venus. J. Atmos. Sci., 25, 555-559. doi: 10.1175/1520-0469 (1968) 0252.0.CO;2
Wallace B.G., Radar Testing of the Relative Velocity of Light in Space. Spectroscopy Letters. Volume 2, Issue 12, 1969
Ingals R.P., Evans J.V., MIT. Scattering Properties of Venus at 3.8cm. AJ, vol.74 no.2, 1969.
Asada H., 2002, The Light-cone Effect on the Shapiro Time Delay http://arxiv.org/PS_cache/astro-ph/pdf/0206/0206266v1.pdf
Kopeikin, S. 2001, ApJ, 556, L1
Kopeikin S.M. The Measurement of the Light Deflection from Jupiter: Theoretical Interpretation 2003. http://arxiv.org/abs/astro-ph/0302462
Klioner S.A. A&A 404, 783-787 (2003) DOI: 10.1051/0004-6361:20030559
The beauty of the DFM is that it shown none of the above challenges the true postulates and theory of relativity. All it does is prove some attached assumptions were wrong, and finally allow the missing mechanisms and compatibility with (an also slightly re-interpreted to allow particles with structure) QM. SR and GR will not then fail on the now overwhelming and confirmed evidence of apparent superluminal motion and ionospheric refraction.
Of course if there was some well meaning conspiracy I'd have some sympathy with it. It seems our intellectual development may not be quite ready to face unified physics! Perhaps 2030?
Peter