(AP) — A group of military service members returning to Joint Base Lewis-McChord from Africa will spend Thanksgiving in isolation while the Army monitors their health for signs of Ebola. The group arriving Tuesday evening includes 15 service members and one Defense Department civilian who built facilities in Liberia to fight the fatal disease, the Army said. Because they have no symptoms, the isolation is called controlled monitoring rather than quarantine, Ricks said Tuesday. The isolation area has computers and exercise equipment.