If you had to ask me, I'd say that China has had something up their sleeves for a couple of decades now, 15 yrs anyways. They liked how Hong Kong turned out, and using their numbers, began working the markets (not just stock).
They're a huge cash flow motor, enough to manipulate BIG time. Yoú'll see they´re behind this more than we suspect.
As far as the "freedy mac fannie mae" fiasco, I think that now that the pressure is on, weak links like them are much more vulnerable.
On the one side, I think it's a good thing, we all gotta get our crap together, and this will help. On the bad side, there's a big shift coming in the whole socio economic system, one that COULD get very complicated.