What is the ACLU arguing in their lawsuit regarding Guantanamo Bay detainees?

The ACLU has filed a lawsuit involving Angela Seguera and other advocacy organizations and relatives of people detained at Guantanamo Bay. Their central argument is that the U.S. government must provide detainees access to legal counsel while they are held in detention. This legal challenge aims to ensure that those held at Guantanamo Bay can exercise their right to legal representation, addressing concerns about transparency and protecting the rights of detainees. The case highlights ongoing tensions between national security policies and fundamental legal protections for those in U.S. custody.