Eira Thomas’s company has used radical new methods to find some of the biggest uncut gems in history.

A young Englishman got mixed up in a white-supremacist movement. Then he learned of a plot to kill a politician.

The U.K. is in a panic over voters’ decision to withdraw from the E.U. But the pugnacious millionaire whose donations—and Trumpian scare tactics—helped sway Britons has no regrets.

In 1942, a volley of torpedoes sent the U.S.S. Wasp to the bottom of the Pacific. For decades, the families of the dead wondered where in the lightless depths of the ocean the ship could possibly be. Earlier this year, a team of wreck hunters set out to find it.

A P.R. company that worked with dictators and oligarchs deliberately inflamed racial tensions in South Africa—and destroyed itself in the process.

At a little after 6.30, nearly every weekday morning, George Osborne — 46 years old, tall, rich, boyish, tieless — takes the bus from Notting Hill in west London, where he lives, to Kensington High Street, where he works, orders his breakfast to take away from Leon, arrives at the marbled and airy headquarters of the London[…]