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The Class of 2012 at the U. S. Military Academy, numbering about a thousand, erupts in joy at the commencement ceremony in West Point, N.Y. Vice President Joe Biden addressed the new graduates, who were commissioned as second lieutenants in the U.S. Army. (Photo: Lee Celano, Getty Images)

The Class of 2012 at the U. S. Military Academy, numbering about a thousand, erupts in joy at the commencement ceremony in West Point, N.Y. Vice President Joe Biden addressed the new graduates, who were commissioned as second lieutenants in the U.S. Army. (Photo: Lee Celano, Getty Images)