The threat the most radical of them pose is evidently far greater at home than abroad: in one characteristically slick and chilling Isis video – entitled “a message to the Jordanian tyrant” – a smiling, long-haired young man in black pats the explosive belt round his waist as he burns his passport and his fellow fighters praise the memory of Zarqawi, who was killed in Iraq in 2006.

They hacked the brush down and made their way through the jungle.

‘ […] An old broken cup has no value. No one prizes it.’ ‘I prize it. It’s my museum, not yours.’

The mainstream media hones in on bad news stories where UK railways are concerned, yet gives scant attention to the many items of good news emerging from the network.