Former diplomats assess U.S. withdrawal from Iraq and region's future

U.S. forces formally withdrew from Iraq today, marking the end of a long and turbulent military presence. The withdrawal brought celebrations in the capital -- but also concern about what comes next. For insight and analysis, Geoff Bennett spoke with James Jeffrey and Feisal Istrabadi. Jeffrey was ambassador to Iraq under President Obama, and Estrabadi served as Iraq's ambassador to the UN.