A second trial has started in Argentina over the systematic sexual abuse of deaf children at an institute run by the Roman Catholic Church. Two priests and a gardener have already been sentenced, now two nuns and seven other female employees of the Antonio Provolo Institute are on trial for sexual abuse and corruption of minors in a case that has shocked the home country of Pope Francis. With nearly 200 witnesses scheduled to testify, many of them requiring sign language interpreters, the trial could take up to a year. Al Jazeera’s Daniel Schweimler reports from Buenos Aires, Argentina.