Peter Whoriskey

A federal disclosure rule is offering new insight on the effect of health care monopolies on pricing, following a wave of U.S. mergers.

As treasury secretary, Tim Geithner criticized predatory lenders. Now the private equity firm he leads runs a company that mails high-rate loans to risky customers.

Amid a burst of high-profile targeted violence, authorities have identified a new source of terror.

Prenuvo promotes full body MRI scans to detect hazardous conditions early. But medical associations say they may cause unnecessary alarm or a false sense of security.

After the Carlyle Group orchestrated a deal for the nation's largest nursing home chain, investors extracted $1.3 billion but left the firm with untenable financial obligations and rising health-code violations.

There’s a trace of graphite in many of today’s consumer devices. In these Chinese villages near the factories that produce it, it’s everywhere — in their water, inside their homes and on their food.

Johnson & Johnson, a company more widely known for baby powder and Band-Aids, became a major supplier of narcotic raw materials to the U.S. thanks to poppies engineered in Tasmania.

The Pandora Papers reveal an unprecedented flow of global investment into American suburbs. Wealthy investors profited as Progress Residential bought homes at depressed prices and rented them to middle-class families.

Across much of the eastern U.S., electricity bills have jumped. The reason? Data centers required for AI and other tech wonders are driving up electricity demand.

Created 10 years ago by a private-equity firm, USAP is now one of the largest in the U.S., with more than 4,000 doctors and spanning nine states. As it gobbled up existing practices, it dominated markets and big price hikes followed.

Mars, Nestlé and Hershey pledged nearly two decades ago to stop using cocoa harvested by children. Yet much of the chocolate you buy still starts with child labor.

Credit Acceptance Corporation was deemed "predatory" by federal regulators. Then the Trump regulators reversed course, dropping the case against it and 17 other firms. Here's how it affected consumers.

The avian flu outbreak has sent egg prices soaring — and increased profits for large corporate producers, which will gain millions more from a new Trump policy.

The Pandora Papers reveal how offshore companies allow the world's richest to wield influence, avoid taxes and buy yachts.

Income inequality among older Americans ranks among the most extreme in a survey of 35 well-developed countries.

His plans for The Washington Post are still a mystery, but he has a history of aiming high.

How a secretive panel of the American Medical Association distorts doctors’ pay

How industry-backed pharmaceutical research convinced the FDA that opioids posed "minimal risk" of addiction.

Even in the most prestigious of medical journals, industry influence over studies opens door to bias.