Tens of thousands of people have rallied in Mexico in a day of action over the apparent massacre of 43 students by police and a drug gang in the southern state of Guerrero. The students from Ayotzinapa teacher’s college have been missing for nearly two months after they were ambushed by police. On Thursday, a massive crowd turned out in Mexico City calling for action against government corruption and the resignation of President Enrique Peña Nieto.