The murder of Mexico’s most vocal anti-crime mayor shows that, despite President Claudia Sheinbaum’s crackdown on drug cartels, the battle is just beginning.

Once pitched as dispassionate tools to answer your questions, A.I. chatbots are now programmed to reflect the biases of their creators.

The rise of artificial intelligence has produced serial writers to science and medical journals, most likely using chatbots to boost the number of citations they’ve published.