President Trump appeared to suggest that the United States would impose economic penalties on countries that do business with Iran, though he did not specify what actions he would take.

© Joyce Zhou/Reuters

In India, some people are strapping cameras to their bodies to collect data on how humans move and train A.I.

In the fast-growing field of data annotation, workers in a small city in south India train A.I. to improve how it performs tasks traditionally done by people.

© Anindito Mukherjee for The New York Times