A protester holds up a sign ("We are missing 43!") with relatives of the 43 missing students from a teacher’s college in Ayotzinapa during a march in Mexico City.
© 2016 Henry Romero/Reuters
A protester holds up a sign ("We are missing 43!") with relatives of the 43 missing students from a teacher’s college in Ayotzinapa during a march in Mexico City.