 There's growing speculation about the health of Vietnam's top leader. It was announced on Thursday that Communist Party chief Nguyen Phu Trung is taking a break from his duties to focus on medical treatment. Officials are keeping tight-lipped about his condition. 80-year-old Trung has led the party since 2011. He has cracked down on corruption in the party and government in recent years. Officials say Vietnamese President Tho Lam will handle Trung's duties for the time being.