BY ADAM ENTOUS, SAM DAGHER AND SIOBHAN GORMAN
Positions hardened in the international standoff over Syria, as U.S. officials said privately that a flood of previously undisclosed intelligence, including satellite images and intercepted communications, erased any last administration doubts that the Syrian regime had used chemical weapons against its own people.
French, U.K. and U.S. military officials talked Tuesday about coordinating their response to the alleged attacks.
The current U.S. position, reflected in a set of tough remarks Tuesday by Vice President Joe Biden, represents a dramatic turnaround from last week. As late as Friday, Secretary of State John Kerry was pressuring Syria to let United Nations inspectors …
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