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Theresa May’s empty threat

The idea that we can use security co-operation as a bargaining chip with the EU is implausible

By Arthur Snell  
The SIS building in Vauxhall

The SIS building in Vauxhall

If it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck. The same goes for threats: Theresa May’s Article 50 letter appears to link Britain’s desire for a generous post-Brexit trade deal with the possibility that it might withdraw high security co-operation. This has been seen as a threat by the Labour and Liberal Democrat parties, by the European Parliament’s chief negotiator, by senior European politicians and by recently retired Whitehall Mandarins. To Home Secretary Amber Rudd it was crystal clear: “There…

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