Just when the Western world had absorbed the shock of a truck attack in Berlin in December that claimed 12 lives, it is reminded again of the dangers of “lone-wolf” attacks inspired by Islamic State (IS) that are almost impossible to guard against.
When a sole attacker drove randomly across London’s Westminster Bridge towards the Houses of Parliament – one of the most trafficked thoroughfares in the Western world – killing and maiming innocent bystanders, it served as a reminder, if that were required, that open, global cities are vulnerable to such attacks.
These are moments that serve as a reality check for those in authority who are striving to maintain a balance between oppressive policing and surveillance and a free society. This is enormously challenging in an environment in which strains of fanaticism have been let loose.
Regrettably, the London terrorist attack leading to five deaths, including the perpetrator and a policeman, will find its way into a racially tinged political discourse – and not in a way that will be particularly edifying.
But there is also no point in pretending that mayhem in the Middle East can be separated from what takes place on the streets of London or Brussels or Berlin or Nice, or in other places that become victims of continuing upheaval in a crescent that stretches from the Mediterranean to South Asia.
Now that the weapon of choice for lone-wolf terrorists seems to have become a vehicle to mow down people innocently going about their business, a policing task becomes even more difficult.
Peter Bergen, a terrorism expert, noted in a post for CNN that as long ago as 2010, al Qaeda’s Yemen branch had encouraged its recruits in the West to use vehicles as weapons.
A headline on its webzine, Inspire, had described vehicles as “the ultimate mowing nachine” – not to “mow grass, but mow down the enemies of Allah”. He wrote:

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