Big Gains for Iraq Security, but Questions Linger.

What's going right? And can it last? Violence in all of Iraq is the lowest since March 2004. The two largest cities, Baghdad and Basra, are calmer than they have been for years. The third largest, Mosul, is in the midst of a major security operation. On Thursday, Iraqi forces swept unopposed through the southern city of Amara, which has been controlled by Shiite militias. There is a sense that Prime Minister Nuri Kamal al-Maliki's government has more political traction than any of its predecessors. [ABSTRACT FROM PUBLISHER]