The costs of providing and managing care, as everyone also knows, can be very difficult to control, and the task of allocating the resources necessary to an effective infrastructure of care is one that the current cartel-like system is not doing very well.

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As far as targeting parents goes, it is all very well to try to target the parents of young children to try to get them to do things in different ways, but it is very difficult satisfactorily to punish parents who won't keep control of their children.

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Of course, Musharraf has a very valid explanation that it's difficult to control these tribal areas which are not used to having any sort of government control.

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Professor Chapman said the web had made information accessible to millions around the world, but it was very difficult to institute a system of quality of control.

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And let me repeat this principle: If we don't get control over costs, then it is going to be very difficult for us to expand coverage.

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It is still not known why the control mechanism breaks down in some people, but the results are very difficult to treat.

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