The Soviet Union used to use psychiatric institutions to silence dissidents. Now some fear some Russian officials are reviving that practice. Larissa Arap, a government critic, published an article alleging ill-treatment of children at a Moscow psychiatric facility. Shortly after she was arrested and sent to a psychiatric hospital herself. The case sparked an international outcry. Anchor Lisa Mullins gets the story from Andrei Ostalsky, who's with the BBC's Russian Service.