Russian Prime Minister Vladimir Putin. Yana Lapikova/AP hide caption

itoggle caption Yana Lapikova/AP

Russian Prime Minister Vladimir Putin as he voted in Moscow on Sunday (Dec. 4, 2011). Alexander Nemenov /AFP/Getty Images hide caption

itoggle caption Alexander Nemenov /AFP/Getty Images

Sen. Lamar Alexander (at left), R-TN, in the Capitol on Monday. He will vote to ratify the New START arms treaty with Russia. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images