Inside Europe: Migrant minors at 'grave risk' in Greece

Aid agencies in Greece are warning that unaccompanied migrant children are at grave risk at overcrowded migrant camps. Many of them are seeking voluntary detention at police cells to escape the camps. Aid agencies want the Greek government to beef up efforts to reunite unaccompanied minors with their families. But most European nations are not willing to help. Anthee Carassava has more.