Inside Guantanamo Bay: Can Biden finally shut world's most controversial prison? The Telegraph was given access to the world’s most controversial prison camp, the paper’s first visit in nearly a decade 25 July 2021 • 7:00am President Biden made a promise to fulfill his predecessor Barack Obama’s pledge to close the Cuban detention facility Credit: Josie Ensor Straining to make out the Arabic translation of the court proceedings through his headphones, Nashwan al-Tamir zoned in and out listlessly. The pre-trial hearing must have had a Groundhog Day feel to it for the 60-year-old Guantanamo Bay detainee, who has grown old waiting for the chance to plead his innocence.