They are known as “black widows”—a type of terrorist that’s emerged in Russia’s clashes with Chechen separatists. Women whose husbands were killed in the fighting, who are bent on avenging their deaths.
There are reports that at least one "black widow" may now be in Sochi. Police have handed out fliers at area hotels warning workers to be on the lookout for her. The development is fueling concerns over safety at the Winter Games. Phil Black has the latest.
Paula Newtown has more on the "black widows."
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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