"The Royal College of Nurses sadly I don't think speak for their members because the picture they paint is not the picture that I see of the NHS. It is under pressure but actually the number of clinical staff throughout the NHS has gone up."
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The 52-year-old had previous convictions for violence but was not on the anti-terror watchlist.
In a statement Charlton Athletic said: Keith was a true hero who will be greatly missed by all the Charlton family and everyone at the club.
London and the worlds has united on Twitter in defiance of the West minster attack #prayforlondon #wearenotafraid