Re: The Shapiro's experiment HOAX. A 1968 TIME article.

Mr. Hertz: Considering that it is deflection instead of redshift, it
would have to be twice Newtonian. It is no more likely that light is
affected twice as much as everything else than that gravity does not
affect it at all. If there is a delay, perhaps the solar wind affects
it, as Edward Dowdye thought.