The deep pockets of the tech investor Garry Tan are valued by his allies, but his pugnacious online habits are creating plenty of enemies in the city he says he wants to save.
In a notorious high-security prison, Evan Gershkovich of The Wall Street Journal stays connected with supporters through letters as they keep up the pressure for his release.
The video app has been criticized for how it has handled posts users see about the war. Some of the same tensions have also played out inside the company.
A restless ambition took him from hip-hop to the Met Gala, a reality show, a fashion label, a fragrance line and his own cable network. Then came the accusations and federal raids.
A new agreement by Visa and Mastercard to reduce fees charged to merchants may drain the lucrative rewards that grant free travel to many credit card users.