President Barack Obama pauses during his address at the "Together We Thrive" program at the University of Arizona.
President Barack Obama pauses during his address at the "Together We Thrive" program at the University of Arizona. Will Seberger/MCT
President Barack Obama pauses during his address at the "Together We Thrive" program at the University of Arizona. Will Seberger/MCT

At Arizona memorial, Obama urges a discussion that heals

January 12, 2011 10:25 PM