U.N. weapons inspectors return to Syria

A UN convoy of vehicles, carrying inspectors investigating allegations of the Syrian regime's use of chemical weapons, drives through the Lebanese village of Taanayel after crossing into Lebanon from Syria on August 31, 2013. The team of UN inspectors left Damascus after completing their probe into a suspected chemical weapons attack near Damascus, an AFP reporter said. AFP PHOTO/ANWAR AMRO (Photo credit should read ANWAR AMRO/AFP/Getty Images)
A UN convoy of vehicles, carrying inspectors investigating allegations of the Syrian regime's use of chemical weapons, drives through the Lebanese village of Taanayel after crossing into Lebanon from Syria on August 31, 2013. The team of UN inspectors left Damascus after completing their probe into a suspected chemical weapons attack near Damascus, an AFP reporter said. AFP PHOTO/ANWAR AMRO (Photo credit should read ANWAR AMRO/AFP/Getty Images)

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United Nations weapons inspectors return to Syria. CNN's Jomana Karadsheh has more.