There was a Dateline story tonight about a research project at the University of Illinois attempting to uncover the identify of Deep Throat.
They've managed to narrow the potential candidates down to 7 people. Dateline called them all. Six of them flat out denied being Deep Throat. The seventh, Pat Buchanan, said that he did not want to make a statment.
Here's a text summary of the story. I also have an avi of the story, and if you want it, e-mail me and i'll spare some bandwidth for ya.
Anyway, their evidence looks pretty good, at least as far as narrowing it down to the last 7 people.