That noise you heard early in the weekend from the direction of New York was the sound of the wheels going around in the brains trust in Hillary Clinton campaign bunker – how to spin a potentially damaging diagnosis by her doctor that Candidate Clinton had pneumonia?

Trump surrogates and the real, if marginal, world of internet-based conspiracy theorists have ensured that Clinton's health bubbles as an issue below the campaign radar – down to near-hysterical claims that one of the Secret Service agents who accompanies her, is a doctor; and the flashlight he carries is in fact, a Diazepam pen.

Americans love to diagnose their own ailments on the basis of what they read on the internet – so why not unfounded ailments, from Parkinson's disease and radiation poisoning to cancer and aphasia, that might afflict a potential president?

So calculations in the Clinton bunker since Friday, had to have been something like this – do we reveal that the doctor says Clinton is unwell, or do we take a punt and see if she can get through imminent scheduled events, like Sunday's 9/11 commemoration, which was all-important because a no-show would have looked bad; and on the grounds of ill- health, much worse.