I think most who agree, the Green Zone is symbolic for several reasons mentioned in the lead comment. But, as times go by, the Green Zone will be an iconic symbol of American presence in Iraq. And as such, will become the target of opportunity when US forces begin to retrograde. The insurgents have the elevation and direction...all they need is a few moments to set up..with sandstorms and downsizing...it will be only time when daily attacks on the 1 billion dollar symbol will become a daily event...... any volunteers from State?