A team at NASA tests possible maneuvers for the Mars rover Spirit to use to escape the soft soil it has been stuck in since April. NASA/JPL-Caltech hide caption

Children are everywhere at the camp. Classes for grades 1 through 6 and 7 through 9 have been arranged at the camp and in a nearby town. Relief workers say it's important to give the children some sense of routine, as well as a safe place where they can play and talk about what they have witnessed. Peter Kenyon/NPR hide caption

President Obama, accompanied by first lady Michelle Obama, pays his respects to Capt. Russell G. Seager during a memorial service for shooting victims at Fort Hood, Texas. Pablo Martinez Monsivais/AP hide caption

Lou Dobbs, shown in 2007, announced Wednesday that he is leaving CNN. Karen Bleier/AFP/Getty Images hide caption

Battalion Chaplain Gary Lewis says a prayer over the Stryker where Spc. Aaron Aamot and Spc. Gary Gooch died the previous day. The wheels were still burning, and the soldiers later had a difficult time pulling the massive vehicle out of the blast crater. Graham Smith/NPR hide caption