Puerto Rican pop star Melina Leon signs autographs for the troopers of Joint Task Force Guantanamo at the Camp American Liberty Center May 13, 2008. The songstress also performed in concert for the residents of U.S. Naval Station Guantanamo Bay. JTF Guantanamo conducts safe and humane care and custody of detained enemy combatants. The JTF conducts interrogation operations to collect strategic intelligence in support of the Global War on Terror and supports law enforcement and war crimes investigations. JTF Guantanamo is committed to the safety and security of American service members and civilians working inside its detention facilities.