Russia has named the alleged US intelligence chief in Moscow - a move seen as breaching diplomatic protocol.

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Downing Street says this is in keeping with diplomatic protocol for such occasions.

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In the highly choreographed, highly status-conscious world of diplomatic protocol, it would be hard to imagine a more blatant snub.

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But it is not clear that they will be able to arrest him, since diplomatic protocol prevents authorities from entering foreign embassies.

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But the reality is the official name is used only by Mexican officials who deal with diplomatic protocol and official documents pertaining to international relations.

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Diplomatic protocol prevents police from entering the embassy to arrest him.

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The Pakistani president and prime minister also made a "very rare and very special" break with diplomatic protocol by meeting Mr Li at the airport, the newspaper adds.

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Enda Kenny said diplomatic protocol ruled out such border hopping.

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Strictly speaking, diplomatic protocol did not require Mr Brown to be there his foreign secretary, David Miliband, was already due in Lisbon for the ceremony, and ministers have signed treaties before.

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At least seven years of progressively relevant responsible experience, preferably in an international organization, with exposure to diplomatic relations or protocol.

UNESCO: Vacancy : Chief of Protocol (4/7/2011) (# ERC 147 - (P4))