The U.S. Military Wants A.I. Dominance. Feuds and China May Thwart It.

The administration is veering wildly in its response to the national security implications of A.I. as China, America’s main technological and military rival, charges ahead.Recent A.I. advances have roiled the Pentagon and the national security establishment.

D David E. Sanger, Dustin Volz, Ana Swanson and Julian E. Barnes

Trump’s Other Hold on the Americas: The Visa

As part of its expansionist approach to the Western Hemisphere, the Trump administration is trying to reassert its dominance, one U.S. visa at a time.The State Department overseen by Marco Rubio has restored the visas of political figures in Central America once penalized by the U.S. government and

E Emiliano Rodríguez Mega, Emma Bubola, Gabriel Labrador and David Bolaños

Years of Trump Support Came Undone in 15 Minutes in an Airport.

The case represents a new front in President Trump’s mass deportation drive: arrests at airports of people who have active immigration cases and no criminal history.Galina Bobreneva and her husband, Brent Jindra, at their home in Redwood City, Calif.

M Miriam Jordan

Is the Democratic Party Facing Its Own Tea Party Moment?

A string of primary wins by progressive candidates has revealed the strength of a high-energy insurgent movement but also its potential limitations.Bernie Sanders and Zohran Mamdani at a rally last week.

L Lisa Lerer and Katie Glueck

As the Old Files Open, One Family Confronts Another’s Dark Nazi Past

A woman who secured the criminal file of her grandmother, a collaborator, offered to share it with a Jewish family that had been betrayed. Then she balked and a new dispute ensued.Maria-Elisabeth Stratermans-Coenegrachts was arrested after the war and accused of having served as a collaborator.

N Nina Siegal and Melissa Schriek

Bot Meets Bot

Are we ready for a world where machines are mostly talking to each other?

C Callie Holtermann

How a Ukrainian Bank Worker Came to Face Life in a Russian Prison

Artem Murdid, his mother and his girlfriend are accused of terrorism. They say they did nothing wrong.Artem Murdid during a trip with friends to a beach on the Sea of Azov in the Zaporizhzhia region in 2019. He says he was tortured into confessing to Russian terrorism charges.

K Kim Barker, Valerie Hopkins and Oleksandra Mykolyshyn