Phoenix International personnel, Mike Unzicker and Chris Minor prepare to deploy the towed pinger locator off the deck of the Australian Defence Vessel Ocean Shield in the southern Indian Ocean during... more 
Phoenix International personnel, Mike Unzicker and Chris Minor prepare to deploy the towed pinger locator off the deck of the Australian Defence Vessel Ocean Shield in the southern Indian Ocean during the search for the flight data recorder and cockpit voice recorder of the missing Malaysian Airlines flight MH370 in this picture released by the Australian Defence Force April 5, 2014. The search for missing Malaysia Airlines flight MH370 in remote seas off Australia headed underwater, with a U.S. Navy high tech "black box" locator deployed for the first time as the battery life of the cockpit data recorder dwindles. A total of 20 aircraft and ships were again scouring a massive area in the Indian Ocean some 2,000 km (1,200 miles) west of Perth, where investigators believe the Boeing 777 carrying 239 people came down. REUTERS/Australian Defence Force/Handout (MID-SEA - Tags: MILITARY TRANSPORT DISASTER) ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS less 
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Reuters | Photo By HANDOUT / REUTERS
Sat, Apr 5, 2014 4:11 AM EDT