In December, Uruguay became the first nation in the world to legislate for the production, sale and state regulation of marijuana. Many hope that when the law takes full effect next year, fewer people will use a cheap, highly addictive cocaine derivative called "pasta base". By allowing adults to grow their own cannabis or buy a maximum of 40g a month from a pharmacy, supporters of the new law believe it will separate the marijuana market from more problematic drugs.
São Paulo's Cracolândia has been here for 15 years. Its population hovered around 1,500. The city recently took over a collection of flophouses around Cracolândia – businesses whose clientele had fled along with most regular commerce in the neighbourhood – and set 400 addicts up in long-term accommodation. They also pitched a big tent on the edge of the fluxo, the shifting mattress camp on the streetcorner where addicts squat, hung up the Braços Abertos (Open Arms) banner and deployed an army of social workers
On a mild winter morning in São Paulo, two dozen people pick up brooms and rubbish bins from a warehouse. They wear blue jumpsuits with a De Braços Abertos (With Open Arms) logo, referring to a controversial new programme for crack cocaine addicts, and set off to sweep streets in the city centre.