The man's wife is alleged to be a Mossad officer under diplomatic cover at the Israeli Embassy in Washington.

CENTERFORSECURITYPOLICY: Center For Security Policy

The officer is part of the diplomatic protection group and was in Downing Street during the alleged incident.

BBC: Andrew Mitchell

Built in 1985 by an Italian consular officer who threw lavish parties, the diplomatic compound came with an additional perk: a separate three-bedroom staff house that boarded bodyguards.

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The officer - a member of Scotland Yard's Diplomatic Protection Group, SO6 - reported the incident to his superiors.

BBC: UK Politics

Terry Gray, area officer of the EIS teaching union, said the council could have been more diplomatic in its approach.

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Lugovoi, also a former KGB officer, gave a television interview Tuesday in which he said Britain had provoked the diplomatic conflict.

NPR: Kremlin Issues Warning After Expulsions

The top-ranking U.S. military officer said Monday that North Korea's reported nuclear test is a primarily a diplomatic matter right now, not a military one.

CNN: Obama: North Korean nuclear test 'a grave threat'