A woman places a "Peace" sign at a memorial outside the offices of congresswoman Gabrielle Giffords in Tucson

 
A woman places a "Peace" sign at a memorial outside the offices of congresswoman Gabrielle Giffords in Tucson
A woman places a "Peace" sign at a memorial outside the offices of congresswoman Gabrielle Giffords in Tucson, Arizona January 9, 2011. Doctors were cautiously optimistic on Sunday about the condition of Giffords after a man shot her in the head and killed six people at a public event in Arizona. REUTERS/Rick Wilking (UNITED STATES - Tags: CRIME LAW POLITICS)