US Vice President Joe Biden, right, laughs as he talks to Sergey Lavrov, Foreign Minister of Russia, during the International Security Conference in Munich, southern Germany, on Saturday, Feb. 2, 2013. The Munich Security Conference started Friday afternoon with experts from 90 delegations. (AP Photo/Matthias Schrader)

Associated Press
US Vice President Joe Biden, right, laughs as he  talks to Sergey Lavrov, Foreign Minister of Russia, during the International Security Conference in Munich, southern Germany, on Saturday, Feb. 2, 2013. The Munich Security Conference started Friday afternoon with experts from 90 delegations. (AP Photo/Matthias Schrader)
US Vice President Joe Biden, right, laughs as he talks to Sergey Lavrov, Foreign Minister of Russia, during the International Security Conference in Munich, southern Germany, on Saturday, Feb. 2, 2013. The Munich Security Conference started Friday afternoon with experts from 90 delegations. (AP Photo/Matthias Schrader)
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