It's odd that the media didn't jump all over this, unless Watergate had them fully occupied. I suppose if you're going to hold hearings about something as controversial as drug testing on uninformed subjects, you're better off doing it while there's a really good scandal going on.
But if this testimony was part of the Senate Record, it should have been publicly available, no? Has the Congressional Record always been open to the public? I can't recall.
If this testimony was publicly available back in 1977, the media are probably banging their collective heads against the wall. This would have been a killer story back then. Now the best they can hope for is that they might be able to stretch a v-e-e-e-e-r-y thin line from the supposed cover-up to the present Bush administration.
I feel sorry for the son, who believes his father was murdered. But I doubt he'll get much farther now than he has over the past several years. If the media can't tie it to the Bush administration, they'll soon lose interest, and that will be the end of the story.
I'm not sure which hearing this was, though I know at least some of the Church Committee hearings were televised and some CIA abuses came to light during them as well.