We're going to turn now to that explosive issue tonight, and right in the middle of it all, children who thought they were coming to america. And the american parents who thought they were adopting... See More
We're going to turn now to that explosive issue tonight, and right in the middle of it all, children who thought they were coming to america. And the american parents who thought they were adopting them. All suddenly shot. Russian president vladimir putin stepping in to stop it all. Kirit radia reporting in from moscow. Reporter: When russia bans adoptions to the united states, this is who gets caught in the middle. An american mother and a 5 1/2-year-old orphan with spina bifida named paulina. The little girl who is already learning to count in english. And tells her mommy that she loves her. I love you. I love you, too. Reporter: Kendra and her husband last saw paulina just a few days ago on a visit to her orphanage outside moscow. Now, with the love only a mother could feel, she worries what will happen to her daughter. I can't help her, I can't tell her that I love her. So -- it's really hard. Reporter: Americans have adopted over 60,000 russian children since the fall of the soviet union. But russian officials have pointed to the cases of 19 children who died after being adopted by americans. And in 2010, russia erupted in fury after a 7-year-old boy named artem was sent back to russia alone by his american adoptive mother, carrying a note saying he'd become too difficult to handle. But children's rights advocates say this new ban is playing politics with the lives of children. Now, with no way of contacting her, she wishes she could send her daughter a simple message. I would tell her that we love her and to be strong and that we're going to do everything we can to come back and get her. Reporter: But at the end of their last visit, it was paulina trying to comfort her mother. I was crying and telling her good-bye and she said, don't cry, mommy, be strong. Reporter: And david, this is a scene that's playing out in literally hundreds of moments across america tonight. Families that thought they would be welcoming home a child but are now wondering if they will ever get to see that child again. David?
This transcript has been automatically generated and may not be 100% accurate.