FILE - In this April 21, 2011, file photo Joint Chiefs Vice Chairman Gen. James Cartwright with Defense Secretary Robert Gates, left, talks to media representatives during a media availability at the ... more 
FILE - In this April 21, 2011, file photo Joint Chiefs Vice Chairman Gen. James Cartwright with Defense Secretary Robert Gates, left, talks to media representatives during a media availability at the Pentagon. Cartwright commented on the unmanned Predator drone, now in limited use in Libya, and told reporters it can strike a vehicle parked near an ammunition depot with such precision that there is less risk of the ammunition exploding and creating unintended casualties. "So it brings some capabilities to the NATO commander that they didn't have before," Cartwright said. less 
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Associated Press | Photo By Alex Brandon, File
Sat, Apr 30, 2011 9:50 AM EDT