Watch CNN.com Live for continuing coverage of the attempted assassination of Rep. Gabrielle Giffords.
Today's programming highlights...
9:00 am ET - Capitol Hill remembers Tucson victims - Lawmakers, staff and others sign a condolence book for the victims of Saturday's mass shooting.
12:00 pm ET - Hospital briefing on Tucson victims - Officials from University Medical Center in Tucson hold a briefing on the conditions of the shooting victims.
1:00 pm ET - State Department briefing - The State Department holds a special briefing on the referendum in Southern Sudan and the situation in the African country.
2:00 pm ET - NASA briefing on shuttle - NASA officials brief reporters on efforts to repair space shuttle Discovery for a future launch.
9:00 pm ET - Mass for shooting victims - A special community Mass for the Tucson shooting victims will be held at an Arizona church.