In later years, he would take over command of the Afghanistan war effort and become director of the CIA,
Now: Petraeus resigned his CIA post in November, admitting he had an extramarital affair with his biographer, Paula Broadwell. Sources close to Petraeus said he would be making his first public appearance since his resignation later this month, speaking at a dinner honoring veterans and active duty military.
Then: Sheehan became the face of the antiwar movement in 2005, when she protested for weeks outside President Bush's ranch in Crawford, Texas. She said she wanted to confront the president, whom she held responsible for the death of her son, a U.S. soldier slain in Iraq.
Now: Sheehan continues to be a vocal opponent of U.S. war efforts in Iraq and Afghanistan. She ran for Congress in 2008 but finished a distant second behind House Speaker Nancy Pelosi in California.
Sheehan has been sued by the federal government for not paying taxes.
Then: Youssif, a 5-year-old boy living in Baghdad, was horribly scarred when masked men set him on fire in 2007. His CNN story struck a chord with viewers, who donated hundreds of thousands of dollars to the Los Angeles-based nonprofit that brought Youssif to the United States for medical treatment.
Now: Youssif and his family continue to call California home, and he has had more than a dozen surgeries to reconstruct his face. He still needs more surgeries, but he has kept a positive upbeat attitude and adjusted well to his new life in the United States. He speaks English, attends school and plays soccer. He said in 2011 that he misses his home country and wants to grow up to be a doctor so he can help others.