Twelve years after Malaysia Airlines Flight MH370 vanished with 239 people aboard, a deep-sea search has so far failed to locate the missing aircraft, as families pressed for the effort to continue. KUALA LUMPUR, Malaysia — Twelve years after Malaysia Airlines Flight MH370 vanished with 239 people aboard, a renewed deep-sea search in the southern Indian Ocean has so far failed to locate the missing aircraft, Malaysian authorities said Sunday, as... [2617 chars]