No one ever forgets a terror attack. But what about the dozens which are foiled at the last minute? Or the threats which are stopped in their tracks months before they can become a reality? In this episode, Neil reveals the most memorable attack he ever thwarted in his time as Head of Counter Terrorism Policing, and the details of how police, MI5 and GCHQ work together to stop terrorists from committing mass murder.

Meanwhile Andy explains how he too helped to uncover a terrorist cell in Manchester - and reminds Neil of the vital role the media can play in tackling terror threats.

Plus, the pair react to Nigel Farage saying he wants police to look bigger and more intimidating. Would this help to make our streets safer? Should the public and criminals alike fear the police? Neil and Andy give their verdicts.

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Neil and Andy address the controversial issue of Shamima Begum, and whether it's right that she was stripped of her British citizenship, in this week's bonus episode. Neil recalls the moment when the then Home Secretary Sajid Javid interrupted his meeting with Prime Minister Theresa May to announce that he'd made that decision - and the pair discuss whether Begum should be allowed back in the UK now.

They also answer your questions on stop & search: invaluable tool for fighting knife crime, or a tactic which damages community relations beyond repair? And what exactly does 'county lines' mean? Andy explains and Neil reveals why it poses such a major problem for British police forces.

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Andy is one of only a very small number of journalists to have successfully gone undercover and infiltrated the far-right. In this episode, he reveals for the first time what happened when the group found out his true identity - and why he needed a visit from the bomb squad and around-the-clock police protection.

Andy also explains why people are attracted to join these groups for real - and tells the story of what he was asked to do for his initiation into one of the UK's most dangerous far-right gangs.

Plus Neil explains the history of the far-right in Britain, from Sir Oswald Mosley to the recently proscribed Maniacs Murder Cult and Russian Imperial Movement. He also talks about why the decision to ban the group National Action was so controversial when he was in charge of counter-terrorism policing in 2016.

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