Graduating U.S. Naval Academy Midshipmen arrive at the Academy's graduation and commissioning ceremonies, at Navy-Marine Corps Stadium in Annapolis Md., Friday, May 23, 2014. (AP Photo/Jose Luis Magana)
U.S. Navy flight demonstration team The Blue Angels perform a flyover above graduating Midshipmen during the United States Naval Academy 2014 Class graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday, May 23, 2014. (AP Photo/Jose Luis Magana) **FILE**
Secretary of Defense Chuck Hagel shakes hands with a Midshipman during the United States Naval Academy 2014 Class academy's graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday, May 23, 2014. (AP Photo/Jose Luis Magana)
Graduating U.S. Naval Academy Midshipmen sing the Navy Blue and Gold before they throw their hats into the air during the United States Naval Academy 2014 Class graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday May 23, 2014. (AP Photo/Jose Luis Magana)
A United States Naval Academy Midshipman reacts after receiving her diploma as Secretary of Defense Chuck Hagel shakes hands with a Midshipman during the United States Naval Academy 2014 Class academy's graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday, May 23, 2014. (AP Photo/Jose Luis Magana)
Graduating U.S. Naval Academy Midshipmen take oath of office during the United States Naval Academy 2014 Class graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday May 23, 2014. (AP Photo/Jose Luis Magana)
Secretary of Defense Chuck Hagel speaks during the United States Naval Academy 2014 Class academy's graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday, May 23, 2014. (AP Photo/Jose Luis Magana)
Graduating U.S. Naval Academy Midshipmen celebrates during the United States Naval Academy 2014 Class graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday May 23, 2014. (AP Photo/Jose Luis Magana)
Graduating U.S. Naval Academy Midshipmen in a procession entrance during the United States Naval Academy 2014 Class graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday May 23, 2014. (AP Photo/Jose Luis Magana)
Midshipmen in ranks attends the the United States Naval Academy 2014 Class graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday May 23, 2014. (AP Photo/Jose Luis Magana)
Graduating U.S. Naval Academy Midshipmen in a procession entrance during the United States Naval Academy 2014 Class graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday May 23, 2014. (AP Photo/Jose Luis Magana)
Graduating U.S. Naval Academy Midshipmen throw their hats into the air during the United States Naval Academy 2014 Class graduation and commissioning ceremonies at Navy-Marine Corps Stadium in Annapolis, Md., Friday May 23, 2014. (AP Photo/Jose Luis Magana)