The US detention center at Guantanamo Bay, Cuba, opened way back in 2002. For the first time since then, the White House has allowed a United Nations independent investigator to visit. Fionnuala Ní Aoláin is a law professor and human rights investigator. She recently spent four days visiting the prison at Guantanamo, and joins The World's Marco Werman to talk about what she saw there.
Sign up for The Top of the World, delivered to your inbox every weekday morning.