A report by a United Nations-backed watchdog has given fresh hope that the missing Malaysia Airlines Flight MH370 could still be found intact while reports from a far-flung atoll in the Indian Ocean – Kudahuvadhoo – suggest it could be near there. Austria-based Comprehensive Nuclear-Test-Ban Treaty Organisation (CTBTO), which has extremely sensitive sensors throughout the world, says it did not detect any explosion or crash – both on land or at sea – since the aircraft disappeared on March 8. CTBTO executive secretary Lassina Zarbo said plane accidents could be detected with three of the four technologies used by the...