U.S. officials are accusing Russia of bombing the aid convoy which was en route to Aleppo.
The accusations come as U.S. Secretary of State John Kerry tries to hold the ceasefire together for Syria during talks with his Russian counterpart Sergey Lavrov.
Our U.S. correspondent Priscilla Huff reports:
IN: "On the record,...
OUT: SOC
DUR: 53
POT: 41 or 37
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