After Commons Speaker John Bercow granted an urgent question on the subject on 18 June 2012, Mr Robertson attacked the decision, which he argued would pave the way for the renewal of the UK's Trident nuclear weapons programme.

BBC: Urgent question: Nuclear-powered submarines

He was a speaker, consultant and author of many books on this subject, including Beyond Survival: A guide for the Business Owner and His Family.

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As a member of the Republican Party, which is generally considered favorable to business and China, and a Mandarin speaker, Ambassador Huntsman is well qualified to speak on the subject.

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Speaker William Hay intervened, asking Ms McCann to keep to the subject.

BBC: Prison reform programme