The last combat brigadee left Iraq, yesterday, marking the end of the active combat phase of Operation Iraqi Freedom. 50,000 troops still remain, but are tasked to non-combat operations. The Obama administration has pledged to withdraw all troops from Iraq by October 2011, at which point security operations are to be transferred to Iraqi forces. In a statement, President Barack Obama called this a "milestone in the Iraq war," and State Department Spokesman P.J. Crowley labeled it "an historic moment."

But is it premature – yet again – to say, "mission accomplished?"

The last U.S. combat troops left Iraq early this morning. 50,000 non-combat forces will remain. What else will we leave behind, and what is the continuing legacy of the war? We're joined by Christian Science Monitor correspondent Jane Arraf. That and this morning's headlines.

A suicide bomber struck a crowd of 300 people this morning in Baghdad.  Jane Arraf, a reporter for the Christian Science Monitor was at the scene. She says that a young man with explosives strapped to his legs blew himself up in the crowd of people who had gathered to apply for coveted jobs with the army. Araf says that it seemed like security was lacking.

Saad al Mutalibi, an Iraqi government spokesperson also responds to the attack. He maintains that his country will be more secure without U.S. forces, and that the attaack is not linked to the withdrawal of troops.

At the beginning of his presidency, President Obama pledged to cease combat operations in Iraq by August 31st, 2010. As we near that deadline, Obama seems on track to keep his promise. By the end of this month, combat operations will cease, and only 50,000 support troops will remain in Iraq. By the end of 2011, the president says, they will all come home. 

David Coleman Headley, a 49-year-old Chicago man, was arrested two months ago in connection with a terrorist plot against the Danish newspaper Morgenavisen Jyllands-Posten. The Copenhagen paper published cartoons of the prophet Muhammed back in 2005, angering Muslims around the world. Yesterday, it was revealed that Headley's terror connections go much deeper; he now faces charges for his involvement in the 2008 massacre in Mumbai that left over 150 people dead.

According to police, Headley was born Daood Gilani and changed his name to more easily cross international borders and, allegedly, serve as an advance scout for the terrorist network Lashkar-e-Taibi. These charges make Headley not just an impressive and well-timed arrest for the Justice Department but, perhaps more importantly, a stark reminder of the wide reach of terrorist networks. 

We are joined from Baghdad by Jane Arraf, correspondent for the Christian Science Monitor. We also speak with the Washington Post's national security correspondent, Carrie Johnson, and Art Keller, a former case officer for the CIA who served in Pakistan in 2006. 

Two suicide bombs exploded in the heart of central Baghdad on Sunday, killing at least 155 people. Analysts say more violence is expected in the run-up to January's general election. We talk with Joost Hiltermann, deputy program director for the Middle East and North Africa with the International Crisis Group, and Jane Arraf, Christian Science Monitor correspondent in Iraq and Middle East editor for GlobalPost.