Andriy Yermak had ensured internal discipline in Ukraine’s wartime politics. He also led the country’s peace negotiations, which now must go on without him.

Canada has made its border with the United States tougher to cross. Here’s what we learned through monthlong reporting on a single case.

[The new law seeks to prevent retailers from ripping off consumers by using artificial intelligence and their personal data to charge them higher prices.

Segev Kalfon said he endured physical abuse and mind games during 738 days in the hands of Hamas. Now, he asks why it took so long for Israel to bring him home.

[There have never been more basketball stars from France. Two best friends saw it coming decades ago and are reaping the benefits.

The upcoming election in Honduras shows how politicians must balance cooperation with the Trump administration with their obligation to undocumented citizens in the United States who may be deported.

[The enrollment chiefs at Tulane and the University of Chicago attracted many early applicants. Now both of them earn a lot of money.

Less than 10 percent of heart and lung surgeons in the United States are women. At a recent conference, they vowed to change that.