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Gates to meet with Saudi king over Mideast unrest (UPDATES) (VIDEO)

Defense Secretary will also discuss an arms deal with Saudi king.

U.S. Defense Secretary Robert Gates and U.S. Ambassador to Saudi Arabia James Smith step off the E-4B aircraft upon arrival on April 6, 2011 in Riyadh, Saudi Arabia. Gates is traveling in the Mideast for a series of meetings with regional leaders.

Chip Somodevilla

AFP/Getty Images

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