Dustin Kopp

U.S. track championships turned physical, with Lyles and Bednarek getting involved in a shoving and shouting match as they crossed the finish line.

China is standing firm against U.S. demands that it stop buying oil from Russia and Iran.

First, a report on what's next for AI at Google DeepMind. And, a look at how egg freezing offers options for women, despite the cost and concerns.

Plastic pollution is a "grave, growing and under-recognized danger" to health that is costing the world at least $1.5 trillion a year, a report in the Lancet medical journals warns

Conflicts between cartels and other organized crime groups in Mexico are often replicated in prison populations, which struggle with overcrowding.