What surge? In Baghdad, they just turned out the lights and left. According to a team of scientists studying satellite imagery:
To hear President Bush tell it, there is one reason, overall, that violence has fallen in Baghdad: The surge....
Not so quick, according to a team of UCLA researchers.
Studying satellite imagery of night light in Baghdad neighborhoods dominated by Sunni residents, they came up with an alternative conclusion: The Sunni Muslims and Shiite Muslims had largely stopped killing each other by the time the "surge" of U.S. troops arrived in 2007.
In other words, the remaining Sunnis, defeated, turned out the lights and left. And then the U.S. troops came in.