The terrorists who rampaged across London on the night of 3 June were part of a wider extremist network closely monitored by MI5 for decades. The same network was heavily involved in recruiting Britons to fight with jihadist groups in Syria, Iraq and Libya.
This is a companion discussion topic for the original entry at https://ageoftransformation.org/isis-recruiter-who-radicalised-london-bridge-attackers-was-protected-by-mi5/