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MI5’s boss, Director General Sir Ken McCallum, told the public this week that Britain must “adapt” to a new and harsher threat picture. His annual threat update rolled out the sorts of line items that make you sit up: terrorism threat level at SEVERE, a quadrupling of state‑backed cases over a decade, the launch of an AI Threat Assessment Centre (AITAC), and blunt advice for parents to “act early” if they fear a child is being radicalised online. It’s sensible to take threats seriously. It’s also sensible to ask how far government wants to reach into our lives in the name of security.
What Sir Ken actually announced — and why it matters
McCallum said MI5 is stretched and the nature of danger has shifted. State threats are now as important as terror work. He announced AITAC to watch artificial intelligence’s role in propaganda, cyberattacks, and even biological risks. The Joint Terrorism Analysis Centre returned the threat level to SEVERE. He also warned that attacks against public figures — like the murder of Ann Widdecombe and plots against others — are part of a worrying trend. These are real problems that deserve real answers. But announcing new agencies and higher threat levels is only half the story.
Parents, teachers and the “Act Early” pitch — helpful or heavy‑handed?
Part of McCallum’s message was aimed squarely at families: if you think a teenager is being radicalised online, speak to a teacher, a health professional, or call the police “Act Early” helpline. That sounds practical on the face of it. In practice it risks turning ordinary communities into surveillance networks. Who decides what counts as “radical”? Will disagreements about migration or national identity become triggers for referrals? We are not helpless against violent extremists. But asking parents to police their children’s thoughts blurs a dangerous line between counter‑terrorism and everyday life.
AI, state threats and the slow creep of a “whole‑of‑society” security model
The AITAC idea is proof that intelligence services know tech is changing the game. Algorithms can steer people to violent content fast. AI can help bad actors scale lies and plan attacks. Fine — stop that. But MI5’s warning comes alongside government talk of “national resilience” and a “whole‑of‑society” response. In plain English, that rhetoric prepares citizens to be second‑line fighters and monitors. Conservatives should be clear: we support protecting public figures and cracking down on violent extremism, from any quarter. We should not, however, accept a permanent state of heightened domestic policing that reaches into schools, clinics, and family homes without strict safeguards and parliamentary oversight.
So what should happen next?
First, fund and focus police protection for public figures and quick, targeted responses to violent plots. Second, set clear legal definitions and transparency rules for any “Act Early” referrals so parents and teachers aren’t weaponised into politics. Third, place AITAC under tight civilian oversight and publish public‑facing rules about how AI assessments lead to action. Finally, remember that robust borders, honest debate, and strong law enforcement are far better shields than turning neighbours into spies. Britain can be both secure and free — if ministers and spymasters stop treating the country like a permanent emergency and start winning back trust instead.
