Russia claims it doesn't have a military presence on the Crimean peninsula. But CNN has found new evidence that Russian troops are not only there but they're constructing new barbed wire borders and bringing in landmines. Anna Coren has the latest from Crimea, where she and her crew were involved in a tense encounter with armed forces.
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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