Narcos and avocados: Mexico’s diversifying drug cartels

In attempts to amass more wealth, these organisations are dabbling in newer narcotics and even taking on the mining sector. The result is taking a toll on the country’s economy. Can a 100-year-old discovery solve the problem of antibiotic resistance? And we celebrate the anniversary of William Shakespeare’s first folio.For full access to print, digital and audio editions of The Economist, try a free 30-day digital subscription by going to www.economist.com/intelligenceoffer