- Matthew Dunn says fighting terrorism by spreading fear and dividing people is precisely the wrong way to go
- Terror incident in London doesn't invalidate the UK's approach of an open society, he writes
Matthew Dunn is a former MI6 front-line special operative and the author of six novels, "Spycatcher," "Sentinel," "Slingshot," "Dark Spies," "The Spy House" and "A Soldier's Revenge." His seventh, "Act of Betrayal," is due for publication by William Morrow in October. The opinions expressed in this commentary are his.
(CNN)I'm a former British Intelligence officer who combated terrorism for six years. Counter-terrorism is a nasty, complex and often frustrating job. It's not for the faint-hearted. Sometimes terrorists slip through the net, but often they are stopped in their tracks by the use of arrests or absolute force.