New radar data from Thailand gave Malaysian investigators more potential clues Wednesday for how to retrace the course of the missing Malaysian airliner, while a massive multinational search unfolded in an area the size of Australia. Search crews from 26 countries including Thailand are looking for the plane that vanished early March 8 with 239 people aboard en route from Kuala Lumpur to Beijing. Frustration is growing among relatives of those on the plane at the lack of progress in the search.
