When drugmaker Valeant began to grow at dizzying speeds, investors were thrilled. But a handful of skeptics realized something was very wrong.

The rampant abuse of laws meant to protect the elderly has left many seniors penniless, powerless and isolated from their families.

Donald Trump's image as a savvy businessman dazzled millions. But journalists and former associates describe an empire awash in drama and shady deals.

Behind the lavish lifestyle of race car driver Scott Tucker lay a secretive lending empire built on tribal perks and profits from poor customers.

As Jared Kushner rose from real estate heir to White House adviser, reporters and housing advocates uncovered disturbing patterns at his properties.

A trail of suspicious transactions led to startling revelations about banking giant HSBC and its ties to Mexico's deadliest drug cartels.

Volkswagen's "clean diesel" cars seemed like a dream come true for carbon-conscious drivers -- until a fraud of staggering proportions came to light.

Behind the huge quantities of gold flowing into the U.S. each year lies a tangled web of money laundering, illegal mining and environmental destruction.

Wells Fargo was long seen as the "golden child" of banking. But former employees detail the ruthless and fraudulent practices that fueled its growth.

Residents of a small Texas town were eager to welcome a massive plastics plant -- until toxic chemicals began to take a toll on their community.

Lavish parties, luxury goods, dubious loans: Scandals surrounding Prime Minister Najib Razak rocked Malaysia -- and left the nation drowning in debt.

An unusual heist that made headlines around the world highlights a bitter feud over one of Canada's most precious resources: maple syrup.