Why the A.I. Boom Is Unlike the Dot-Com Boom

Silicon Valley is again betting everything on a new technology. But the mania is not a reboot of the late-1990s frenzy.Ben Horowitz, a major A.I. venture capitalist, in 2019. “The clearest sign that we are not actually in a bubble is the fact that everyone is talking about a bubble,” he said.

D David Streitfeld

Legal Groups Sue Justice Dept. for Secret Memo Justifying Boat Strikes

“The public deserves to know how the Trump administration has justified the outright murder of civilians as lawful,” the organizations said in their lawsuit.The lawsuit, filed by the American Civil Liberties Union and other legal groups, seeks the release of a secret memo that provides a legal ratio

J Jonah E. Bromwich

In L.A., $750 a Month to Live in a Backyard Storage Unit

A landlord crowded tenants into his house and yard without running water or power. One, determined to find an alternative, was up against the city’s housing crisis.“I’m just kind of done living like this,” Junior Estrada said.

L Livia Albeck-Ripka

What Streaming TV Could Learn from ‘Mad Men’

The classic show arrived on HBO Max with an embarrassing remastering error. But the show’s creative mastery remains undeniable.Jon Hamm in “Mad Men,” now streaming on HBO Max.

J James Poniewozik

Europe, Too, Is Worth Fighting For

Provided Europeans want to fight for it.European Union leaders with Volodymyr Zelensky of Ukraine and President Trump at the White House in August.

B Bret Stephens

Trump Pressures Ukraine

Also, the Supreme Court considers campaign finance limits. Here’s the latest at the end of Tuesday.President Trump with President Volodymyr Zelensky of Ukraine and other European leaders at the White House in August.

M Matthew Cullen

Student Is Killed in Kentucky State University Shooting

The police said that a suspect was arrested after the shooting in Frankfort, Ky. A second student was injured and in critical but stable condition, a university spokesman said.The Kentucky State University campus in Frankfort, Ky., where the police responded to a shooting on Tuesday afternoon.

M Michael Levenson and Rylee Kirk