The original content of Democracy Now! Headlines appears under the Creative Commons BY-NC-ND 3.0 License (United States). For more, including their other shows and media, visit www.democracynow.org. May 12, 2009 US Soldier in Iraq Kills 5 Comrades at Stress Clinic ---------------------------------------------------- Five US soldiers died in Iraq Monday after a fellow soldier opened fire at a stress clinic at a US military base in Baghdad. The killings appear to be the single deadliest episode of soldier-on-soldier violence among US forces since the United States invaded Iraq six years ago. .