Mr. Obama also used another powerful device rhetorical device in his speech, one favored by orators since the dawn of civilization.

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But, though Mr Blair is happy to use the past as a rhetorical device, he does not seem to have learnt from it.

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In politics, a dog whistle is a rhetorical device--an oral expression susceptible to two interpretations, one straightforward and one, metaphorically speaking, at a higher frequency.

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It is just a rhetorical device of the devaluationists.

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" As we explained last August: "In politics, a dog whistle is a rhetorical device--an oral expression susceptible to two interpretations, one straightforward and one, metaphorically speaking, at a higher frequency.

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At first, this reticence seemed like a clever device to force the two sides to abandon their rhetorical posturing and accept responsibility for calming the situation.

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