New algorithms can police whether people are complying with public health guidance. The practice raises familiar questions about data privacy. Video by Mark Thiessen and Rebecca Hale, National ...

Facial expressions have increasingly been used to assess emotional states in mammals. The recognition of pain in research animals is essential for their well-being and leads to more reliable research ...

Facial recognition is becoming more accurate, but some systems exhibit racial bias and some uses of the technology are controversial Can Big Brother identify your face from street-level CCTV ...