For families of missing Mexican students, answers remain elusive

What really happened in Iguala six months ago when 43 students disappeared? Many in Mexico are still determined to find out, despite government calls to move on.

Henry Romero/Reuters

Six months after the grisly disappearance of 43 teachers' college students in the troubled Mexican state of Guerrero, friends and family of the missing spread out across the United States and Mexico to remind the world that the search isn’t over.