Miriam Lewin is one of the few survivors from the infamous Navy Mechanics School in Buenos Aires, known as Esma, which operated as a death camp during military rule in the 70s and 80s.

Human rights activists say around 5,000 people were murdered there and most were thrown from planes into the sea.

As a left-wing activist Miriam was arrested and brought to the camp at the age of 19. She recalls her time in captivity.