Few would argue that the enormous complexity of the gargantuan US Federal Government is a huge and dangerously expensive problem.

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One way to cut through the complexity is to look at a relatively small and tractable subset of the larger problem.

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They are concerned about the cost and the complexity of the system, and they should be concerned because that is still going to be a problem.

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He's been telling reporters his views at the Pentagon, and you get a sense of the complexity of the situation when you hear how Petraeus starts with the problem, offers some optimism, but then qualifies it all with what's still going wrong.

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