Pavements are risky public spaces David Cameron has to live with that | Simon Jenkins

The Leeds jogger who jostled Cameron has shown its impossible to protect anyone who wants to lead a reasonably normal life

None of us is secure. We dice daily with death. Somewhere is a bullet or a tree or a double-decker bus with our name on it. When David Cameron was allegedly jostled by a Leeds jogger on Monday it could have been much worse. Everything could always be much worse.

The story is indeed puzzling. The Met polices famously overstaffed and underworked VIP protection mafia were sunn...