U.N. Yemen envoy warns U.S. designation of Houthis could 'chill' peace talks

NEW YORK, Jan 14 (Reuters) - U.N. Yemen mediator Martin Griffiths warned the Security Council on Thursday that a U.S. decision to designate Yemen's Houthis a foreign terrorist organization could have "a chilling effect on my efforts to bring the parties together" and should be revoked on humanitarian grounds. (Reporting by Michelle Nichols)