Outside the Iraqi parliament, a tan-colored crane lifts slabs of concrete. Soldiers maneuver them into place, adding a second layer of blast walls near the entrance to what is already one of the most fortified buildings in the Iraqi capital.

 

Around Baghdad's Green Zone, once the heart of the US occupation and now the fortified seat of government, some of the concrete walls are going back up. They were pulled down a year ago in what the Iraqi government called an acknowledgment of improved security.

Ten years after the US-led invasion that toppled Saddam Hussein, talk swirls in government circles of Sunni protesters planning to destabilize the country.