Officials Hopeful Despite 'No Breakthrough' in Missing Plane Search

Australian PM Tony Abbott thinks this is it.

Speaking to reporters during a state visit to Shanghai, the Australian leader said he was "confident" the sounds his search teams had picked up were coming from the plane's black boxes — and he also reminded us time was running out.

"It's been very much narrowed down because we've now had a series of detections, some for quite a long period of time," Abbott said, kicking off a round of speculation that authorities had found the plane

"Nevertheless, we're getting to the stage where the signal from what we are very confident is the black box is starting to fade," Abbott added. "We are hoping to get as much information as we can before the signal finally expires." Read more...