Jeff Kao

Jeff Kao

Jeff Kao is an engineer at Bloomberg in New York covering data and AI. He worked at ProPublica, where he earned Polk, Loeb and IRE awards.

Latest

One of Dubai’s Most Powerful Executives Discussed Sex, Business With Epstein

One of Dubai’s Most Powerful Executives Discussed Sex, Business With Epstein

Emails show Sultan Ahmed bin Sulayem corresponded with the disgraced financier for more than a decade after Epstein was first jailed in 2008 for procuring a minor for prostitution

February 10, 2026

February 10, 2026

One of Dubai’s Most Powerful Executives Discussed Sex, Business With Epstein

Emails show Sultan Ahmed bin Sulayem corresponded with the disgraced financier for more than a decade after Epstein was first jailed in 2008 for procuring a minor for prostitution

One of Dubai’s Most Powerful Executives Discussed Sex, Business With Epstein

December 12, 2025

December 12, 2025

Year in Review: 2025 in Graphics, Maps, and Visual Stories

The Year in Graphics

2025: The Year in Graphics (4x3 animated GIF V2)

December 10, 2025

December 10, 2025

How Epstein’s Deep Ties Across Wall Street Helped Him Build Wealth and Power

Hedge funds. Brokerages. Billionaires. Jeffrey Epstein rode the coattails of the rich and played hardball with his connections, a cache of emails reveals.

How Epstein’s Deep Ties Across Wall Street Helped Him Build Wealth and Power

November 21, 2025

November 21, 2025

Jeffrey Epstein’s HSBC France Account Was Closed After Suspicious Activity

The disgraced American financier had extensive ties to Paris. A trove of emails obtained by Bloomberg News reveals that one bank raised questions about Epstein’s business there and closed his account in 2007.

Jeffrey Epstein’s HSBC France Account Was Closed After Suspicious Activity

November 14, 2025

November 14, 2025

Epstein’s Emails Reveal Book Purchases About Trump, Sex, Money and Power

The disgraced financier purchased books about making money, treating narcissism, negotiating with anyone, achieving ecstasy and understanding life

Epstein Library lede homepage

October 31, 2025

October 31, 2025

Jeffrey Epstein Went to War Over Money Laundering Probe in 2007 Sex Case

As investigators followed Jeffrey Epstein’s money in 2007, his elite team of attorneys waged an aggressive battle to stop them. A cache of private emails obtained by Bloomberg News reveals details of the fight.

Jeffrey Epstein Went to War Over Money Laundering Probe in 2007 Sex Case

October 6, 2025

October 6, 2025

How Debt Collectors Spin Riches from Zombie Loans

Bloomberg News obtained a trove of internal records from one debt collector that reveals how the industry uses inflated bills and threats of foreclosure to blindside homeowners across the US.

Zombie Debt Inc.

September 25, 2025

September 25, 2025

Jeffrey Epstein Leaned on His Elite Network for Help as Investigators Closed In

A cache of 18,000 messages shows the elite support the disgraced financier got in his “hour of terror.”

Jeffrey Epstein Leaned on His Elite Network for Help as Investigators Closed In

September 25, 2025

September 25, 2025

Key Takeaways From Epstein’s Emails Revealing His Support Network

Bloomberg News obtained over 18,000 messages sent to and from the disgraced financier, detailing his links to academics, lawyers and crisis strategists.

Key Takeaways From Epstein’s Emails Revealing His Support Network

September 11, 2025

September 11, 2025

How Bloomberg News Vetted the Epstein Emails

Methods included cryptographic analysis, metadata analysis and corroboration with external sources.

How Bloomberg News Vetted the Epstein Emails

September 11, 2025

September 11, 2025

Key Takeaways From Jeffrey Epstein and Ghislaine Maxwell’s Emails

Bloomberg News obtained over 18,000 messages to and from the disgraced financier, revealing the deep ties to the people around him.

Key Takeaways From Jeffrey Epstein and Ghislaine Maxwell’s Emails

September 11, 2025

September 11, 2025

Epstein’s Emails Detail the Life and Crimes of the Financier—and Ghislaine Maxwell’s Leading Role

A cache of 18,000 messages reveals Maxwell’s deep ties and involvement with the sex offender.

Epstein’s Emails Detail the Life and Crimes of the Financier—and Ghislaine Maxwell’s Leading Role

September 10, 2025

September 10, 2025

UK Ambassador Told Epstein ‘I Think the World of You,’ Emails Reveal

Peter Mandelson, the prominent Labour politician who was named British ambassador to the US this year, expressed steadfast support and offered to discuss Epstein’s now-infamous 2008 case with his contacts.

UK Ambassador Told Epstein ‘I Think the World of You,’ Emails Reveal

January 17, 2025

January 17, 2025

Is NYC's Congestion Pricing Working? Fewer Private Cars Are On the Road (For Now)

A Bloomberg analysis of 75,000 vehicles found fewer private cars and more cabs in Manhattan's traffic mix.

Is NYC's Congestion Pricing Working? Fewer Private Cars Are On the Road (For Now)

December 24, 2024

December 24, 2024

2024: The Year in Graphics

The Year in Graphics

2024 Year in Graphics

October 24, 2024

October 24, 2024

Elon Musk Is Now X’s Biggest Promoter of Anti-Immigrant Conspiracies

The billionaire owner is spreading debunked theories of undocumented voters swaying the US election, and growing his social influence in the process.

Elon Musk Is Now X’s Biggest Promoter of Anti-Immigrant Conspiracies