Using artificial intelligence to make videos of people doing and saying whatever you want them to is the essence of a "deepfake".
Deepfakes have been around since 2017 and are often produced for humoristic or educational purposes. But the technology is getting more sophisticated and more accessible, raising the possibility that it will be used to create misleading videos for malicious purposes.
For France's Media Week 2023, the FRANCE 24 Observers have produced a special edition of "Truth or Fake", in four episodes.