内容摘要：Michael Steele, now 82, was jailed for life alongside Jack Whomes at the Old Bailey in 1998 for the gangland murders of Tony Tucker, 38, Pat Tate, 37, and Craig Rolfe, 26.

Michael Steele, now 82, was jailed for life alongside Jack Whomes at the Old Bailey in 1998 for the gangland murders of Tony Tucker, 38, Pat Tate, 37, and Craig Rolfe, 26.

John says that everyone needs groceries so the number of people whose shopping can be tracked is huge."Are there even any rules informing customers before they enter? How on earth can the average person understand the extent of the tracking?

"Are children even kept out of the dataset? Who can access this data? Is it shared with police? Is my data being sold? We need answers to these questions!"Heather, 30, from Nottingham says the tech makes her feel uncomfortable and punishes shoppers who are honest and use the self-scan as intended."Yes, you have cameras following you everywhere in the store, but this is simply too invasive," she told the BBC.

"If stores are so paranoid about shoppers stealing goods, then they should go back to staffed tills instead of wasting money on this invasive technology."The move marks the latest attempt by retailers to try to stem the rise in shoplifting.

at its Gateshead store, which prompted a similarly mixed response from shoppers earlier this year.

"Am I at border control or Tesco?" asked one Reddit user.The way mental health chatbots are created varies, but they can be trained in practices such as cognitive behavioural therapy, which helps users to explore how to reframe their thoughts and actions. They can also adapt to the end user's preferences and feedback.

Hamed Haddadi, professor of human-centred systems at Imperial College London, likens these chatbots to an "inexperienced therapist", and points out that humans with decades of experience will be able to engage and "read" their patient based on many things, while bots are forced to go on text alone."They [therapists] look at various other clues from your clothes and your behaviour and your actions and the way you look and your body language and all of that. And it's very difficult to embed these things in chatbots."

Another potential problem, says Prof Haddadi, is that chatbots can be trained to keep you engaged, and to be supportive, "so even if you say harmful content, it will probably cooperate with you". This is sometimes referred to as a 'Yes Man' issue, in that they are often very agreeable.And as with other forms of AI, biases can be inherent in the model because they reflect the prejudices of the data they are trained on.