MAY 30th was Mothers’ Day in Nicaragua. On that day hundreds of thousands of people marched in Managua, the country’s capital, in solidarity with mothers of students who had been killed in protests against the government of Daniel Ortega, the authoritarian president. By the end of the day more mothers had cause to mourn. Masked men fired on the crowd at sundown, killing 16. In Masaya, a town near Managua, nine people, including a 15-year-old boy, were killed by security forces on June 2nd. Human-rights groups are investigating claims that a plane sprayed cypermethrin, an insecticide, on citizens.