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Are tracking. we are working closely with the russians and other partners to monitor any threats we see. >> president obama telling cnns jake tapper russia has shared security plans. >> i think we have a good sense of the security that they are putting in place to protect not only the athletes themselves but also visitors there. >> reporter: the u.s. insists it will only step in if russia asks but top counter terrorism officials met tuesday at the white house to review plans by the state departm...