Obama visits Giffords, others at Arizona hospital

Members of US President Barack Obama's entourage, including House Minority leader Rep Nancy Pelosi (2nd R), walk from the motorcade into University Medical Center for a visit with Rep. Gabrielle Giffords in Tucson, Arizona, Jan 12, 2011. [Photo/Agencies]

Daniel Hernandez (L), the 20-year-old intern credited with likely saving the life of Rep Gabrielle Giffords, US President Barack Obama, first lady Michelle Obama and Congresswoman Gabrielle Gifford's husband, NASA shuttle commander Mark Kelly (R) attend the event held to support and remember the victims of the mass shooting, at the University of Arizona in Tucson, Arizona, Jan 12, 2011. [Photo/Agencies]