A new study of the civilian death toll since the U.S. invasion of Iraq has put the number of Iraqi deaths at 151,000. The World Health Organization and the Iraqi government arrived at the figures from door-to-door surveys at nearly 10,000 homes. The figure is far lower than a 2006 Johns Hopkins University study that estimated 600,000 Iraqi deaths. Despite the difference, researchers concluded their findings still show “a massive death toll in the wake of the 2003 invasion.” The new study also dwarfs other estimates, including President Bush’s estimate of 30,000 Iraqi deaths in December 2005.