Houthis study U.S. truce proposal for Yemen-source

(The story was refiled to correct the origin of the report as source, not negotiator) DUBAI/SANAA (Reuters) - A senior U.S. diplomat has presented a proposal for a comprehensive ceasefire in Yemen to the country's dominant Houthis at a meeting in Oman, a source close to the Houthi negotiating team said on Thursday. Negotiators will return to Houthi-controlled Sanaa on Friday carrying the plan offered by U.S. Undersecretary of State for Political Affairs Thomas Shannon in talks in Muscat, the sou