As 2022 comes to a close, here are ten notable historical anniversaries to mark in 2023.

Facebook has failed to moderate content in underserved countries. Facebook and other social media companies must invest more in local content moderation, instead of relying on global AI systems.

On Monday March 28, 2022, some gunmen launched a deadly attack on a Nigerian Railway Corporation (NRC) Abuja-Kaduna evening train carrying an estimated 398 passengers. After detonating explosives on the track (and possibly inside the train according to conflicting reports in the local media), the gunmen surrounded the immobilized train and started discharging their firearms into the carriages. It took at least an hour before a detachment of the Nigerian military came to the rescue of the passengers, who had cowered under their seats as the bandits fired incessantly. The incident left at least eight people dead—among them a young medical doctor Chinelo Megafu and Musa Lawal-Ozigi, secretary-general of the country’s Trade Union Congress—and at least another forty-one hospitalized, while the yet unidentified assailants also captured some of the passengers.

Biden faces a dual challenge at the UN General Assembly. He must convince the world that the U.S. is committed to multilateralism while persuading the American public that the UN can be an indispensa…

Attempting to shut down discussion of the potential weaponization of geoengineering is unwise. We can only see a short way into the future.