Near the end of The Insider, after the crippled down version of Jeffrey's interview aired on TV and Lowell Bergman returns from his forced vacation, he ends up somewhere in the US countryside in the middle of nowhere. There he meets a bunch of supposed geologists whom he identifies as FBI agents on trail of the Unabomber. When he informs his FBI contact about his findings he gets a guaranteed 3 hour pre-information before the attempted arrest.
But I wonder what the relevance of this subplot actually is. Seeing that the complete interview is finally aired because of Lowell in turn blowing the whistle on CBS's questionable withholding and his whitewashing of Jeffrey's reputation in the newspapers, he certainly didn't use his connections in the Unabomber case as pressure. Nor did he use it to keep his job at CBS, since he resigns shortly afterwards.
So, is Lowell's investigation in the Unabomber case in any way connected to Jeffrey Wigand's case? If not, what was the relevance of this subplot? Why was Lowell there and in which way does it relate to the rest of the movie's story?