Evo Morales’ global crusade to decriminalize the coca leaf, launched in 2006 after the coca growers’ union leader was first elected president of Bolivia, has finally attained a partial, if largely, symbolic victory. A year ago, Bolivia temporarily withdrew from the 1961 U.N. convention on narcotic drugs because it classifies coca leaf, the raw material of cocaine, as an illicit drug. It has now rejoined, with one important caveat: The centuries-old Andean practice of chewing or otherwise ingesting coca leaves, a mild stimulant in its natural form, will now be universally recognized as legal within Bolivia.