Mexico’s new top cartel, led by a kingpin called El Mencho, has taken the country’s shocking violence to a terrifyingly brazen new level. In Tunisia, ten years after a self-immolation sparked the Arab Spring, voters are disillusioned with democracy and even nostalgic for the old days. And reflecting on the pianist who lost the use of his right hand, and reinvented his playing around his left. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer