shia militias, who have been brought back to the fore, they're probably well equipped to preserve the borders if you like of baghdad, but what goes on inside the city in a sectarian sense is crucial to this, the sunni/shia divide very alive within the capital. >> and that is a concern. there's a real feeling in some parts of the city, some shia parts of the city, that they don't know what is hiding and what could come out of the predominantly sunni neighborhoods here. so, the current atmosphere is really sowing even deeper seeds of distrust. there are more checkpoints in the city and there's been no trouble in mobilizing and reenergizing and reactivating some of the old shia militia. today we saw on the streets very close to the center of baghdad here hundreds of young and old men, some in camouflage, fatigues, some in regular civilian clothing, answering the call to rejoin and start up