The Register 
Thursday, Feb 19, 2009
Pentagon boffinry chiefs have announced that they would like some self-aware computer systems capable of “meta-reasoning” and “introspection”. The plan is to place these machine intelligences in command of heavily armed, well-nigh invulnerable robotic tanks.
This latest plan for humanity’s subjugation comes, of course, from DARPA – the agency believed to harbour the largest known group of lifelike people-simulant robots piloted from within by tiny, malevolent space lizard infiltrators in the entire US federal government.
The plan is called Self-Explanation Learning Framework (SELF). It is being handled by Dr Mike Cox of DARPA’s renowned Information Processing Technology Office.
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According to this presentation (pdf)  by Dr Cox:
Without a model of self, cognitive systems remain brittle …
Improved goal satisfaction through self-explanation and meta-control module.
Self-explaining systems lead to better calibrated trust for human users.
Goal: Provide machines with an ability to reason about their own reasoning… SELF will enable any learning system to explain and repair itself