Under rules proposed last week, the next advanced A.I. models might need the government’s permission to be exported out of China.

President Luiz Inácio Lula da Silva in Brasília on Monday. He is taking on a right-wing candidate in a runoff on Oct. 25.

A 15-year-old using social media apps in Australia in July, more than half a year after the country had implemented a ban on children under 16 using many platforms.

Strancally Castle in Waterford, Ireland, was built around 1830 and renovated in the early 2000s. It now belongs to Mark Zuckerberg.

Flowers at the site of a crash that killed an 18-year-old student last year in Hanoi, Vietnam.

Malaysia’s social media ban for children under 16 was supposed to take effect on June 1.

President Trump and Crown Prince Mohammed bin Salman, the Saudi leader, have extensive ties.

A Meta logo at a conference in Mumbai, India.

Supporters of Abelardo de la Espriella, a right-wing presidential candidate, in Medellín, Colombia, last month.

Regulators in Europe said Meta appears to be violating the Digital Services Act, an E.U. law passed in 2022 to force social media companies to police their platforms more aggressively.

Meta has described the two teams already as “deeply integrated.”