Led Lightbulbs

The United States has moved to block China's access to the most advanced semiconductors and the equipment and talent needed to make them in recent months, citing national security. China has dismissed those concerns, accusing the United States of "technological terrorism" and unfairly hindering its economic growth.

Philomene Ahouansou cooks beans and rice in three giant steel pots by the roadside in Benin's capital, Porto-Novo. It's a scene that's common throughout the country.

A team of Chinese scientists at Shanghai's Fudan University have developed a method to use light as a carrier wave for wireless data signals.

The United States has moved to block China's access to the most advanced semiconductors and the equipment and talent needed to make them in recent months, citing national security. China has dismissed those concerns, accusing the United States of "technological terrorism" and unfairly hindering its economic growth.

Philomene Ahouansou cooks beans and rice in three giant steel pots by the roadside in Benin's capital, Porto-Novo. It's a scene that's common throughout the country.

A team of Chinese scientists at Shanghai's Fudan University have developed a method to use light as a carrier wave for wireless data signals.