'Death camp': the haunting history of Syria's Sednaya prison

Syrian rebels led by Islamist armed group Hayat Tahrir al-Sham announced Sunday that they had liberated thousands of political prisoners after a dramatic 10-day military campaign that toppled the Assad family’s 50-year rule. As former prisoners reunite with their families, questions remain about the prison’s hidden sections and the full extent of its brutal history under the Assad regime.