Activities - Other countries using the smart city model and, in particular, facial recognition, are The UK, the US, China, India, South Korea and others. The smart city model certainly has its place in a technologically advanced society. The essential question, however, is whether it is compatible with a democratic society. The security it promises is important. But is it really necessary and more effective than human actions? And above all, is it ethical towards the human being and his individual freedoms? - In September 2019, four researchers wrote to the publisher Wiley"respectfully " to immediately retract a scientific paper. The study, published in 2018 4 , had trained algorithms to distinguish the faces of Uyghurs (a predominantly Muslim minority ethnic group in China) from those of Korean and Tibetan ethnicity. China had already been condemned internationally for its heavy surveillance and mass detention of Uighurs in camps in the northwestern province of Xinjiang. According to media reports, the authorities in Xinjiang used surveillance cameras equipped with software tailored to the faces of the Uighurs. As a result, many researchers found it disturbing that academics had tried to create such algorithms - and that an American journal had published a research paper on the subject. - Machine learning, through image recognition, can categorize animals based on images alone. When environmentalists or wildlife experts capture images or photographs, they can ask machine learning systems to process the data and accurately classify animals. This step helps monitor populations and behaviours for appropriate conservation. Placing cameras with facial recognition capability in public places, the city is able to "track" its residents. The aim of the project is to improve citizen safety and law enforcement. However, beyond the security that such a system is supposed to provide to citizens, it also threatens their privacy. Citizens cannot move freely while their personal data is collected with the possibility of being used for unknown purposes, legitimate or illegitimate. For example, in 2015, scientists at Stanford University in California published a set of 12,000 images from a webcam in a San Francisco café that had been broadcast live on the internet2. The following year, researchers at Duke University in Durham, North Carolina, released more than 2 million video frames (85 minutes) of footage of students walking around campus3 AI F acial recognition capability in public places