When a U.S. helicopter landed beside the Tigris River in metro Baghdad residents immediately thought that a U.S. military operation was under way in spite of the facts that all troops are supposedly gone. One person was injured in the rough landing that was caused by technical problems.
Although all troops are withdrawn some actually are still working for the U.S. embassy a virtual city in itself on the outskirts of Baghdad. There are also thousands of armed private contractors who work for the State Dept. still present in Iraq.
Iraq is still plagued by insecurity with bombings and violence still common. The situation is aggravated by the policies of the Maliki government which is supported both by Iran and the U.S. Maliki seems engaged in a campaign to purge rivals particularly Sunnis. He has had many politicians arrested and charged his Sunni vice-president with supporting terrorism as well. The future looks dim unless Maliki makes deals with his opponents rather than trying to suppress them as he is doing now. For more see this article.