Congratulations on an excellent job.
Just remember to save the whole article on a server or your hard disk. Articles like this can "disappear" when the left finds out what you have done with them.
I took your suggestion and have both printouts and copies of these source articles on my hard drive. I see the investigation into who "leaked" is ongoing. Personally, after digging through the genesis of this thing, I believe Novak when he says it wasn't a planned leak. I believe it wasn't a leak at all, but an accidental byproduct of events set in motion by Wilson, himself, aided by Pincus and possibly Corn.
Novak quickly picked up on one of the key questions: how and why did Wilson get picked to go to Niger. He does not reveal the flow of the conversations with the sources he went to for answers. But I can imagine them in my minds eye, because I know the techniques reporters use to gather info. A skilled reporter like Novak, with his lifetime of experience, knows how to get a unsuspecting source chatting about all sorts of things. In the process, bits and pieces of what the reporter is looking for just come out.