Trump Allies Grill PBS and NPR During Congress Hearing

Dark pronouncements by Republicans about a “communist agenda” espoused by public media were intercut with lighter references to “Sesame Street” and “Curious George.”

Emboldened by Trump, A.I. Companies Lobby for Fewer Rules

After the president made A.I. dominance a top priority, tech companies changed course from a meeker approach under the Biden administration.

The C.F.P.B. Remains Alive as the Trump Administration Tries to Shut it Down

Court orders have paused, and at times reversed, the Trump administration’s efforts to shut down the consumer watchdog agency.

How the Crypto Exchange Bybit Lost $1.5 Billion to North Korean Hackers

The cryptocurrency exchange Bybit lost $1.5 billion to North Korean hackers last month — and it all traced back to an account on a free digital storage service.

As Trump Attacks D.E.I., Wall Street Worries

Goldman Sachs will drop a demand that corporate boards of directors include women and members of minority groups as financial firms backpedal from D.E.I. promises.

What is DeepSeek? And How Is It Upending A.I.?

How did a little-known Chinese start-up cause the markets and U.S. tech giants to quake? Here’s what to know.

ExThera Claimed Its Device Could Cure Cancer. But Patients Died.

Two U.S. companies teamed up to treat cancer patients using an unproven blood filter in Antigua, out of reach of American regulators.