developments in the search for mh-370 this hour. australian authorities say the searchers hunting for the missing jet airliner have re-acquired pings possibly from the data recorder. >> they have picked up shields twice on tuesday, the first one lasted for five and a half minutes, the second for a full seven. >> now, the search coordinator calls it a great lead and says he is confident the plane will be found in the not too distant future. but authorities say they're not ready to confirm. >> they are not ready to deploy the bluefin vehicle you see there, it takes much more time to go underneath the surface. so they want to triangulate before they do that. all of these announcements just developed a few hours ago.