One of the world’s biggest oil producers is facing a man-made crisis: Its gas stations are running out of gas. There are mile-long lines at filling stations across central Mexico. In some states, public transportation has been halted. President Andrés Manuel López Obrador, facing his first major challenge, has urged the country not to panic. But it was López Obrador’s war on fuel trafficking that led to the current crisis — a fight against organized crime and corruption that has already proved complicated. For years, Mexico has lost billions of dollars to fuel theft. Cartels hacked into pipelines each night, and corrupt employees of the country’s national oil company, Pemex, helped siphon away even more fuel from Pemex installations. Last year, Mexico lost an average […]