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

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

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

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

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

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

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