http://bitcoin.sipa.be/speed-lin-10k.png
Yet at the same time, we know KnC is cranking out >100TH per day and if you look at the pool stats, they all seem up significantly. BTCguild, eligius, Slush, ghash.io, they have added several 100TH to their hashrate over the past few days.
Whats up with that? Did someone turn off a large private pool or something?
This is very interesting... hmm.
Maybe the NSA got fed up with the rising difficulty rates?
I guess it doesn't do much at the moment
http://www.thenewamerican.com/tech/computers/item/16713-nsa-spy-center-melting-down-burning-up-taxpayer-money