For review: 1. The U.S. proposed that Iran accept a 20-year moratorium on uranium enrichment during talks over the weekend, according to a U.S. official and a source with knowledge.. The Iranians countered with a shorter "single digit" period, according to the sources. 2. US Aircraft carrier USS George H.W. Bush (CVN-77) is operating off the coast of Namibia, as it sails around the African continent and is set to join a growing naval force in the Arabian Sea amid a U.S. bloc...