War and Peace and the Nobel Prize

President Obama accepted his Nobel Peace Prize today with humility and a defense of the war in Afghanistan. He said the use of force can bring lasting peace. Compared to others who've won the prize, he called his own accomplishments "slight." We hear excerpts of today's "lecture" and get different reactions. Why did he get the prize? Was it premature? Was the Nobel committee sending a message? Did it create an embarrassing contradiction?

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