Obamas Attend Memorial in Tucson Arizona...

President Barack Obama and first lady Michelle Obama walked toward the Marine One prior to their departure from the White House January 12, 2011 in Washington, DC. President Obama and the first lady are attending a memorial event at the University of Arizona Tucson for the victims at the mass shooting in Tucson.

 President Barack Obama and first lady Michelle Obama walked 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.

President Barack Obama and first lady Michelle Obama greet Arizona Gov. Jan Brewer as they arrive in Tucson, Ariz., to attend a memorial service for victims of last Saturday's shooting rampage that killed six people and left 14 injured, including Rep. Gabrielle Giffords, at Davis-Monthan Air Force Base, Wednesday, Jan. 12, 2011. [photos via Getty Images and AP Photo]