U.S.-Russian Strategic Arms Reduction Treaty of 1991 (START) is set to expire in December 2009 and the Obama administration intends to negotiate a START renewal treaty before then.

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A Mexican National Guard officer stands guard on a pickup truck during a vehicle check heading to the United States at the San Ysidro Port of Entry crossing in Tijuana, Baja California, Mexico, on February 6, 2025. (Getty Images)