Obama: We Are Part of the American FamilyLess than three weeks after the Tucson shooting, Democrats and Republicans sat side by side and wore white ribbons as a tribute to the victims during Tuesday's State of the Union address. The president continued this message of unity in his speech, opening by noting the absence of Rep. Gabrielle Giffords, who is in a rehabilitation facility in Texas, and alluding to Christina Green, the 9-year-old killed in the shooting. "We believe that in a country wher...