WASHINGTON, DC - JUNE 15: Chairman of the Joint Chiefs of Staff Adm. Mike Mullen participates in a Senate Defense Subcommittee hearing on proposed budget estimates for FY2012 for the Defense ... more 
WASHINGTON, DC - JUNE 15: Chairman of the Joint Chiefs of Staff Adm. Mike Mullen participates in a Senate Defense Subcommittee hearing on proposed budget estimates for FY2012 for the Defense Department, on June 15, 2011 in Washington, DC. Mullen along with U.S. Secretary of Defense Robert Gates are scheduled to retire at the end of June. (Photo by Mark Wilson/Getty Images) less 
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Getty Images | Photo By Mark Wilson / Getty Images
Wed, Jun 15, 2011 12:37 PM EDT