MH370 searchers detect new signals

An Australian navy ship has detected new underwater signals consistent with aircraft black boxes, the search chief said Monday, describing it as the "most promising lead" so far in the month-old hunt for missing Flight MH370. Retired Australian defence force chief Angus Houston said the acoustics, emanating from deep down in the Indian Ocean, showed that the multinational search by ships and planes seemed to be "very close to where we need to be". The apparent breakthrough comes as the clock ticks past the 30-day lifespan of the emergency beacon battery fitted to the black box of the Malaysia Airlines jet, which vanished on March 8 with 239 people on board en route from Kuala Lumpur to Beijing, according to AFP.