As America abandons the Intermediate-range Nuclear Forces treaty we examine the future of arms control. New weapons abound and new countries are using them, but new treaties will be hard to come by. With Baltimore in the news as President Donald Trump’s latest point of provocation, we ask how the city’s crime rates got so high, and what can be done. And, the surprising rise of rosé wine in France.

As aid workers battle the second-worst outbreak in history, they face violence and disbelief. A history of conflict, suspicion of the rich world and wild conspiracy theories make fighting a difficult battle far harder. Architects are tackling the dark, loud, violent nature of jails to make them more about rehabilitation than retribution. And, the increasingly absurd language of job adverts.

Canada’s prime minister may not have an easy campaign ahead; we sit down with Justin Trudeau to discuss his tenure so far. The country’s role as a liberal bastion seems safe, for now. Bayer is now reckoning with the problems presented by its latest acquisition, Monsanto—and it may emerge stronger. And, we meet a Mongolian band on a heavy-metal mission. Track “Remember Your Thunder” courtesy of SnakeBiteSmile

The fields of American presidential candidates just keep getting bigger, and party rules incentivise extreme views and dark-horse entrants. That might not be what’s best for either party. The fast-shipping arms race sparked by Amazon is radically reshaping how stuff gets around the world. And, on a visit to Shanghai’s flagship Lego store, we ask what makes the bricks so popular in China.

Authorities in Beijing held a rare press conference addressing unrest in Hong Kong. That gives lie to the region’s “one country, two systems” governance; fears of a vicious crackdown are growing. Beneath what might seem to be advancements of women’s rights in Saudi Arabia is a mess of contradictions. And, why youngsters are turning away from Facebook—but toward the social-media giant’s other platforms.

Beji Caid Essebsi promised to fix the economy, re-establish security and consolidate Tunisia’s democracy—but all of that remains unresolved as the country begins its search for a new leader. Pet ownership is surging around the world, as are ways to pamper pets. Who owns whom here? And, homeopathy gets diluted as France removes its state subsidy for the pseudoscience.

As promised, the special counsel revealed no more than appeared in his report into Russian election-meddling and obstruction of justice. The story hasn’t moved on, but Democrats would be wise to. Economists are returning to an old idea: that cultural forces should figure into their theories. And, a look at the blindingly fast hands—and feet, and robots—of Rubik’s Cube competitions.

Rolling protests have rocked the island after leaked texts revealed the governor’s insults. But Puerto Rico’s problems are far greater than almost 900 pages of tasteless jokes. We consider the merits of challenging Latin America’s amnesties; justice might be served, but unearthing the past comes with its own perils. And, why women are so well represented among eastern Europe’s scientists.

Britain has a new prime minister—who will inherit all the same problems his predecessor had. Good luck guiding a divided nation through Brexit with a paper-thin majority in parliament. Europe’s steel industry is getting hammered by tariffs and gluts, but one tucked-away mill in Austria has steeled itself for tumult. And, what single characteristic do Americans least want in their roommates?Additional audio "Fly" by Benboncan at Freesound.org.

The seizure of a British-flagged tanker in the Gulf may seem counter to Iran’s international objectives. But at home, hardliners are in the ascendancy—for them, it’s a public-relations coup. The rise of populism, particularly in Europe, suggests voters are angry. But polls suggest otherwise; we dive into this “happiness paradox”. And, the curious rise in borrowing against high-end art.Additional music "Puzzle Pieces" by Lee Rosevere.