For some reason, couldn't post the original link to the above story. The story is here.

Another story on sectarian killing and displacement in Baghdad:

Baghdad's New Owners - NEWSWEEK, Sep 10 issue.
Shiites now dominate the once mixed capital, and there is little chance of reversing the process.

...

Thousands of other Sunnis like Kamal have been cleared out of the western half of Baghdad, which they once dominated, in recent months. The surge of U.S. troops—meant in part to halt the sectarian cleansing of the Iraqi capital—has hardly stemmed the problem. The number of Iraqi civilians killed in July was slightly higher than in February, when the surge began. According to the Iraqi Red Crescent, the number of internally displaced persons (IDPs) has more than doubled to 1.1 million since the beginning of the year, nearly 200,000 of those in Baghdad governorate alone. Rafiq Tschannen, chief of the Iraq mission for the International Organization for Migration, says that the fighting that accompanied the influx of U.S. troops actually "has increased the IDPs to some extent."

When Gen. David Petraeus goes before Congress next week to report on the progress of the surge, he may cite a decline in insurgent attacks in Baghdad as one marker of success. In fact, part of the reason behind the decline is how far the Shiite militias' cleansing of Baghdad has progressed: they've essentially won. "If you look at pre-February 2006, there were only a couple of areas in the city that were unambiguously Shia," says a U.S. official in Baghdad who is familiar with the issue but is not authorized to speak on the record. "That's definitely not the case anymore." The official says that "the majority, more than half" of Baghdad's neighborhoods are now Shiite-dominated, a judgment echoed in the most recent National Intelligence Estimate on Iraq: "And very few are mixed." In places like Amel, pockets of Sunnis live in fear, surrounded by a sea of Shiites. In most of the remaining Sunni neighborhoods, residents are trapped behind great concrete barricades for their own protection ...