Searchers are closing in on the final resting place of Malaysia Airlines Flight 370, according to Australian Prime Minister Tony Abbott. He told reporters in China today that authorities are "very confident" pings detected in the Indian Ocean are from the plane's black boxes and the position has been narrowed to "within some kilometers," the BBC reports. "Still, confidence in the approximate position of the black box is not the same as recovering wreckage from almost 4.5km (2.6 miles) beneath the sea or finally determining all that happened on that flight," he added.