Why was Defense Advanced Research Projects Agency (DARPA) scrapped?

Noah's recent interview with DARPA's director, Tony Tether, the agency head emphasized progress in cognitive computing, saying:

We're on the verge of having computers with densities approaching a monkey's brain, and it won't be long before we'll have a computer with the density of transistors, or equivalent to neurons and almost human. What we're missing is the architecture. So it seemed like it was time. We had great advances in algorithms for reasoning and in algorithms that learned in general. At the same time, the computers, the actual intrinsic hardware, was really approaching the density of a human brain. And so it seemed like it was time to try again. We've had some great success.

Somehow, I doubt the agency is going to provide any more clues about why this research ended up on the chopping block.


Source: http://blog.wired.com/defense/2007/03/darpas_brain_dr.html