Why it’s becoming impossible to stop the terrorists | Robert Verkaik

The definition of extremism is so fluid that the security services are drowning in cases. Even known suspects can’t be thwarted without the right evidenceThree terror attacks in three months have left the British security services desperately searching for ways to prevent another atrocity being committed in our streets.But the frightening reality is that terrorism has become impossible to police. The attacks in Westminster, Manchester and London Bridge were carried out by extremists who ha