Boris Johnson has volunteered to be blasted by a water cannon. The Mayor of London was challenged over their safety, and replied: "Man or mouse. You’ve challenged me, so I suppose I’m going to have to do it now."
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Services on major rail routes between London and south west England have been severely disrupted after a person was hit by a train.
The business executive, whose ruthless interviewing technique has won him many fans, is replacing Nick Hewer, who quit after a decade.
Recent opinion polls show Labour within striking distance of capturing the trophy seat of Finchley and Golders Green.