Charming buffoon or cunning chameleon? Welcoming liberal or snarling Brexiteer? We ask why, despite having no guiding philosophy, Boris Johnson is so likely to become Britain’s prime minister. Our obituaries editor remembers the socialite Claus von Bülow, his sensational attempted-murder trials in America and the enduring question of whether he did it. And, despite appearances, China’s and America’s film markets are growing further apart.

Iran’s downing of an American drone today is just the latest source of tension between the countries. Where does it end? As facial-recognition technology improves, rising privacy concerns are hampering its adoption. And in Britain, advertisements that play to gender stereotypes are under more scrutiny from regulators and consumers.Additional music by Lee Rosevere "Puzzle Pieces".

The worldwide count of people forced from their homelands has increased sharply, again. What’s driving these movements, and what are governments doing about incoming refugees? The Democratic Republic of Congo is suffering the world’s second-largest outbreak of Ebola—we ask why it hasn’t been declared an international emergency. And, why Thailand is getting into the weed business.

America’s president heads back to the Sunshine State today to announce his candidacy. What to expect this time around? Muhammad Morsi, Egypt’s first democratically elected president, has died in court. We look back on his troubled leadership and ignominious end. And, this year’s Women’s World Cup is drawing much more attention than past tournaments, in part because of a long-overdue reckoning about money in the sport.

Calls for the resignation of Carrie Lam, the territory’s leader, are intensifying. Hong Kongers may have put a recent freedom-crimping bill on ice, but more challenges to their independence await. We speak to the mother of a child genius who reveals the private agony of being an exceedingly clever kid. And, a new podcast in Latin gets our columnist thinking about language evolution and resurrection.

America has blamed Iran for yesterday’s tanker attacks in the Gulf of Oman. If that’s true, Iran is playing a dangerous game that involves the whole of the region. The violent militias that control much of Rio de Janeiro might be easy to beat if they weren’t so well-connected. And, a breakaway hit reveals the racial fault lines in country music.

An investigative journalist’s release may look like a press-freedom win in Russia—but it represents much more than that. Democratic presidential hopefuls have no shortage of transformative ideas, yet Senate arithmetic ensures there’s little hope of realising them. And, we visit a place where malaria rages while a cure literally grows on trees.

Half of humanity is now online. What will the second half do when it logs on? The same as the first: friendly chat, personal expression and a lot of cat videos. Despite appearances, racism in America is actually going down; the problem is that America’s politics is increasingly fractured along racial lines. And, why is it that screams are so prevalent in popular culture?

A proposed change to the judicial system is just the latest sign that mainland China is exerting pressure on Hong Kong’s autonomy. Authorities seem ready to quell further demonstrations. Although solitary confinement is widely condemned, it’s still common in America; we speak with an inmate who’s spent half a lifetime in solitary. And, the sheikhs of Iraq who help resolve disputes—and are available for hire.

In the end, President Donald Trump’s tariff threat did what he had hoped: Mexico has pledged to tighten immigration flows. But such weaponisation of tariffs bodes ill for the future. China’s “green Great Wall” of trees—a bid to halt desertification—may be doing more harm than good. And, we meet some of the Filipino sailors who keep the global shipping industry afloat.