A controversial referendum on Crimea rejoining Russia threatens to escalate Ukraine's battle over sovereignty. A video emerges that might further inflame tensions between pro-Russian and pro-Western protesters. John Kerry meets with his Russian counterpart for a second day. Anderson takes a look back at the last 24 hours of the Ukraine crisis.
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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