Rice says that without a military strike in Syria, the US could be at risk of terrorist attacks.
Read more...How can we be sure sarin was used?
Read more...The Russian president admitted on Thursday that Syria "needs change."
Read more...Obama tells Syria "the world is watching."
Read more...Syria has effectively been cut off from the Internet.
Read more...Rebel forces captured regime-held areas of Aleppo just before the cease-fire was set to begin. (watchsmart/Flickr)
The U.N.-sponsored truce begins Friday morning.
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