AI could be “a weapon of mass destruction of jobs”.
Context
Sadiq Khan, the mayor of London, made the remark during his annual Mansion House address last week as he set out concerns about the scale and pace of disruption artificial intelligence could bring to the labour market.
His speech followed months of public debate about the consequences of AI for job security, skills and future employment models. Khan said London sat at the “sharpest edge” of technological change and warned that leading sectors such as finance, professional services and the creative industries were already experiencing significant pressure from rapid advances in automation.
His comments drew on polling carried out by City Hall in November, which found that more than half of London workers expected AI to affect their job within the next year. Khan said the findings reinforced the need for preparation and argued that entry level and early career roles were at particular risk. He also announced the creation of an expert taskforce to assess how work is likely to change and confirmed plans to commission free AI training for residents of the capital.
Khan told his audience that AI had the potential to support major advances in areas such as health and sustainability. He said the technology could help improve cancer care, strengthen climate action and streamline public services. But he repeated that without careful oversight and investment in skills, communities could experience job loss at a speed and scale that would be difficult to manage.
Meaning
Khan’s statement conveyed a stark message about the future of work. The phrase “weapon of mass destruction of jobs” was used to signal the seriousness of the challenge and the belief that AI could accelerate displacement if organisations and governments failed to act. His comparison with earlier waves of technological change indicated that the impact may be broader than previous forms of automation, affecting office based roles as well as operational work.
By describing the risk as dependent on how the technology was used, Khan framed the issue as one of governance, responsibility and foresight. He implied that the decisions taken now about investment, regulation and workforce preparation would shape whether AI became a tool for improvement or a source of widespread disruption.
Khan said workers were aware of the potential impact of AI but often lacked access to training or pathways to adapt. His message highlighted the importance of ensuring that people were supported through change rather than left to face uncertainty alone.
Implications
Employers may need to strengthen workforce planning and examine the long term consequences of automation for job design, progression and recruitment. Khan’s remarks pointed to the need for clear strategies that account for how tasks, skills and responsibilities could evolve. This may involve reviewing development frameworks, investing in learning programmes and ensuring that early career routes remain open and meaningful.
The comments also indicated that organisations should consider the pace at which AI is introduced. A focus on responsible deployment may help reduce the risk of sudden displacement and maintain trust among employees. Transparent communication, careful assessment of impacts and equitable access to training are likely to be central to managing expectations and supporting staff through periods of transition.
Khan’s said there was a moral obligation to act and highlighted the possibility that inequality could deepen if interventions were delayed. The message suggested that employers and public bodies may be expected to demonstrate how they are preparing people for future work, both to protect employment and to support the wellbeing of their communities.





