Your local police department probably has a $400,00 device that listens in on cellphones. Soon your neighbor will be able to buy the same thing for $1,500.

He made billions. He lost billions. He was fired as CEO of the company he created. And on March 2, just hours after he was accused of rigging oil deals, he died in a one-car crash.

Philanthropist and private equity mogul David Rubenstein is lauded for his patriotic donations, including half the cost of repairing the Washington Monument. He also helped save a controversial tax break billionaires love.

The difficult business of spending money well.

Be nice and listen.

Why China’s super-rich send their children west.

How the feds flipped a corrupt American soccer official named Chuck Blazer and brought down the sport’s governing body.

On the parasitic relationship between oil and the stock market.

How one billionaire owner outflanked two others and brought the NFL back to Los Angeles, doubling the value of his franchise.

The hedge fund manager making a bet that Wall Street can solve the water crisis in the West.

Inside Steve Madden’s shoe empire.

“Florida, in some ways, resembles a modern Ponzi scheme. Everything is fine for me if a thousand newcomers come tomorrow. The problem is…no one knew what would happen if they stopped coming.”

“She is a tech bro — except she’s a woman, trying to sell underwear. Or, as she sees it, innovating in the ‘period space.’” A profile of Miki Agrawal, founder of Thinx.

How an art shipper took advantage of the market’s opaque rules and shadowy deal-making to rip off a Russian oligarch.

“On paper, [DJ Khaled] doesn’t make a whole lot of sense. He’s released eight full-length albums but doesn’t actually rap on any of them. He’s perhaps the most quoted figure in hip-hop, able to create viral catch phrases with an ease that marketing executives dream about. He’s played a serious role in the hip-hop industry throughout his career, yet he’s perceived almost exclusively as a meme by fans across the nation.”

According to the trades and his pitch to investors, Ryan Kavanaugh had found film business formula that couldn’t lose. It could. Unraveling a Tinseltown Ponzi scheme.

Arno Smit bilked millions out of Tulare County dairy workers (and at least one wealthy widow). Then he disappeared.

The inside story of Target’s brief, disastrous expansion north.

How a hanger-on at the fringe of San Francisco’s rock scene built the Rolling Stone empire.

Sitting alone in his San Jose office, Michael Burry saw the bubble in the subprime-mortgage market before anyone else. So he convinced Wall Street to let him bet on it, even though few were betting on him. The article that became The Big Short.

After Brooke Melton died in a car crash, her parents approached attorney Lance Cooper to investigate. What he found in her 2005 Chevy Cobalt would lead to GM’s 30 million-vehicle recall.

The bribery scandal, involving tests given for coveted government jobs and medical school admissions, began implicating high-ranking officials. Then people started turning up dead.

He’s been accused of fraud, sexual assault, and using drugs. But for Chris Bathum, who doesn’t have prior experience treating people struggling with addiction, opening several facilities promising to do just that has been surprisingly easy—and lucrative.

Suzan Russaw is 70 years old. She lived in affordable Palo Alto housing for decades. Then, in 2013, she was forced to move into her car. On the new homeless of Silicon Valley.