In the latest sign of a rightward swing of the pendulum in Latin America, voters in Ecuador opted overwhelmingly  for tough anti-crime measures, including joint army and police patrols against cocaine gangs. Traditionally a peaceful place,  Ecuador last year saw homicides almost double last year, to 7,994. In Sunday’s law and order vote, Ecuadorians looked for inspiration not to neighboring Colombia, but 1,300 miles up the Pacific Coast, to El Salvador.