Who is slipping through Europe’s porous borders?

In the same week that over 1,000 migrants arrived in England, the head of MI5 admitted his agency had ‘one hell of a job’ on its hands. Ken McCallum said that while there is a threat from Russia, China and Iran, it was Islamist terrorism ‘that concerns me most’. In particular, al-Qaida and the Islamic State, specifically their Afghan affiliate Islamic State Khorasan Province (ISKP), members of which slaughtered 137 Russians in a Moscow concert hall earlier this year.

McCallum’s analysis is almost identical to that of Céline Berthon, the director-general of the DGSI, the French equivalent of MI5. She also namechecked the two Islamist terror groups in an interview last month, warning that this year she had noted a ‘fairly strong resurgence of the threat’.

The MI5 chief made his remarks three days after 973 migrants had landed in 17 small boats in Kent.