NPR's Michele Norris talks with Rev. Tandy Sloan, who lost his son, 19-year-old Army Pfc. Brandon Sloan, in Iraq. Brandon Sloan was killed when his unit's convoy from the 507th maintenance company was ambushed in Nasiriyah on March 23, 2003. Sloan reflects on news that more than 1000 US troops have been killed in Iraq since the war began. Some 800 have died since President George Bush declared "Mission Accomplished."