A recommendation by military leaders to quarantine all U.S. troops returning from West Africa was approved Wednesday by Defense Secretary Chuck Hagel. Those returning from the missions to combat the spread of the Ebola virus will be kept in supervised isolation for 21 days. The move is stronger than those recommended for civilians by the administration. The recommendation was made to Hagel by Gen. Martin Dempsey, chairman of the Joint Chiefs of Staff. There are more than 1,000 U.S. troops in Liberia and Senegal providing support for those working to combat the disease.