Drug traffickers thrive on their ability to penetrate national borders, but a new era of toxic, man-made highs could dissolve those boundaries and transform the global drug trade.
The government has described the synthetic weed Spice as "the most serious threat to the safety and security of the prison system," and it's not wrong.
More and more, city gangs are sending young runners out into the sticks to sell crack and heroin. We spoke to dealers, sex workers, and police to get a better understanding of how the whole process works.
Two British police forces have started referring people caught with a personal amount of drugs to educational workshops rather than sending them to court.
For several months, police units in the UK have been operating "diversion" schemes which have resulted in scores of drug users avoiding court, jail, and a criminal record.
"Sometimes I think we're like those Japanese soldiers in WWII—the ones on the island who just kept fighting because they didn't know the war was over."
In most parts of the world, HIV infections and deaths from AIDS have been falling, but in Muslim-majority regions, new HIV infections have been on the rise since 2001.
In South Africa, assaults are rarely reported to the authorities because sex workers know if they ask for help they will be ignored or even punished, especially if the perpetrators are police officers.
An interview with the man who owned the UK's biggest legal high wholesale business.