Obama tells polarized nation: 'We can be better'
President Barack Obama speaks at a memorial service for the victims of Saturday's shootings at McKale Center on the University of Arizona campus Wednesday, Jan. 12, 2011, in Tucson.
President Barack Obama and first lady Michelle Obama walk on the tarmac of Davis-Monthan Air Force Base in Tucson, Ariz. Wednesday, Jan. 12, 2011. The Obamas are in Tucson to pay tribute to the six people killed in the weekend shootings and to the fighting spirit of wounded lawmaker Gabrielle Giffords, the target of the first assassination attempt on a member of Congress in decades. (AP Photo/Chris Morrison)
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