Last year's Republican presidential candidate, John McCain, said he did not think it necessary to release further documents purporting to show the effectiveness of such methods in gleaning information.

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If it's not necessary, I think you'd be better to hold on to some of your cash because if this recession deepens, we'll need that money to help us out.

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Nevertheless, Huck sent a reply to Chiarelli saying he still did not think an investigation was necessary.

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He added that he did not think the situation was that dire, but it was necessary to change Microsoft to accommodate the downturn.

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But Mr Greenspan has been anxious not to spread alarm while ensuring the Fed can take whatever action it might think necessary.

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Murray's call for a players' meeting before last month's Shanghai Masters did not eventuate in any action, and the Scot himself later stated that he did not think a strike was necessary -- but that the issue of fixture scheduling needed to be addressed.

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