Career as opinionist

• In October 2009, Barrett wrote that the terrorist organisation-du-jour "is 'losing credibility' among its potential supporters", Barrett also remarked that it hadn't "really made a connection to a new generation" of young Muslims who have little recollection of the events of 9/11 and are less interested in religion. In the case of the attempted assassination on 27 August 2009 of Prince Mohammed Bin Nayef, at the time the Saudi terrorist rehabilitation programme, the Daily Telegraph summarised that:^[18]

This time the would-be assassin, the ostensibly repentant Asiri, gave himself up and took two flights, one aboard the Prince's private jet, and spent 30 hours closely guarded by the Prince's personal security detail. It was during the month of Ramadan, a time of repentance for Muslims and Aseiri (sic) was granted an audience with the prince at his private palace in Jeddah, by declaring that he would persuade other militants to surrender. Asiri briefly called other militants to tell them that he was standing alongside Prince Nayef. It was all recorded by al-Qaeda who has turned the episode into an animated movie boasting of their exploits.

• On 6 September 2014, Barrett wrote that one useful addition to the CONTEST (or Prevent) strategy would be to use "repentant fighters" or "disillusioned militants" to "come home" and publicise the brutality of ISIS.^[19]
• He returned to the theme of terrorist repatriation scant hours after the Bataclan massacre occurred in Paris on 13 November 2015, writing:^[20]

But thankfully the brutal reality of Isil membership – its squalor, inadequacy and ultimate failure – is also increasingly becoming apparent... [Repentant terrorists] will help us cut the flow of fighters to Syria by helping us understand why they go, why they stay and why they come back. It is these same people who can be more powerful influences than any other on those who may be inclined to join or act on behalf of Isil. Often they have tried it and seen it does not work. They have the credibility and understanding that the rest of us lack. They hold the key to victory.

• On 26 November 2014, scant hours after the Rifkind report into the murder of Lee Rigby was released to the public, he appeared to excuse tech firms like Facebook,^[21] which had been shown to broadcast the terrorist threats of Adebolawe that led directly to his savage actions.^[22]
• Barrett wrote an op-ed in The Guardian two days after the 2017 London Bridge attack^[23]
• Two days after the 2016 Nice truck attack, Barrett wrote an article about how "The best defence..." against terrorism is to freeze state anti-terror policy, the security services had still not much clue about who becomes a terrorist and why they become a terrorist, and that Muslim community loyalty to the state seems dependent on success:^[24]

Without [muslim] community help, the job of intelligence services is clearly far harder; but [muslim] communities will only help if they believe that their broader interests are also served by helping the state. When this is more obviously the case, terrorism will not only become more rare – it will also become less effective.

• Barrett wrote one day after the Manchester Arena bombing of May 2017 that "We have the world's best security services – but the Manchester attack was inevitable" and that "These attacks highlight our vulnerability to the indiscriminate acts of people who see no better way to express their disaffection than by murdering their fellow citizens." Barrett found the ISIS explanation a "perfectly ridiculous description".^[25]