U.S. Defense Secretary Robert M. Gates (center) and his wife, Becky (left), are greeted by Russian officials upon their arrival in St. Petersburg on Monday, March 21, 2011. (AP Photo/Charles Dharapak, Pool)
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U.S. Defense Secretary Robert M. Gates (center) and his wife, Becky (left), are greeted by Russian officials upon their arrival in St. Petersburg on Monday, March 21, 2011. (AP Photo/Charles Dharapak, Pool)
