That sort of information comes from having serious inside, in-depth background information.
You know, the sort of stuff serious investigative journalists /used/ to do. Like the Washington Post in 1972 when they reported on illegal activity by the President (http://en.wikipedia.org/wiki/Watergate_scandal#Role_of_the_m...) rather than the Washington Post in 2013 when the report on Presidential Broccoli (http://www.washingtonpost.com/blogs/post-politics/wp/2013/07...).
We've seen a rare example of serious investigative journalism and how /our/ countries respond to it by targeting family and loved ones of the journalists. That's the way we used to say only the KGB or the Gestapo behaved in the Bad Old Days. Guess what ? The Bad Old Days are right here and right now.
No wonder PJ is concerned that continuing Groklaw may expose her to serious risk from the authorities. Commenting on court cases and filling in the background through back-channel information from Deep Throat (or whatever pseudonym they use today) sure does not seem to be worth that risk to me.
It's sad that any comment on this stuff makes it sound like you go around wearing a tin-foil hat.