A hiker takes in a view of rock formations at Utah's Zion National Park that rise more than 3,000 feet above the canyon floor. Courtesy of Zion National Park hide caption

itoggle caption Courtesy of Zion National Park

Former Army officer Lawrence Colburn greets My Lai Massacre survivor Do Ba in 2008. Chitose Suzuki/AP hide caption

itoggle caption Chitose Suzuki/AP