M'ette and I were thinking along the same lines. I believe NELL's statement was a victim of the common typo and what she really meant was, BHO is a political anus. 
Swoop
That was my thinking as well.
It does at first, if you only read the hype. But then when you get into the details you find that NELL is extremely slow at assimilation. Weeks to figure out that computer files were backed goods. It may be a big step for scientists, who are easily impressed with their findings, but a long way towards AI on a human level.
I have to disagree with Alf, It does not need to be "AI on a human level.
As intelligent as HAL may have sounded, it's only real power was deciding to obey input commands, yes or no.
A system does not have to make an INTELLIGENT decision to screw up the whole human world, it just has to decide to do as it pleases.
Congress makes a good example of unintelligent systems getting the bit in their teeth.