[moosey]

I would surmise that they are holding off on Western Pols because they want to keep eyes as long as possible on this. For these organizations, eyeballs are money.

If they released a huge set of people on day one and didn't have much to show on day two, this would fall off the news cycle really quickly. I think that with the US political climate, they'll focus there soon, but they want a lot of people paying attention first.

This is just a guess, but it seems logical. We've seen this kind of slow-drip journalism with big data dumps in the past.