Andy Meltzoff is in the news with his work on how toddlers adjust to adult anger -
http://health.usnews.com/health-news/articles/2014/10/31/study-shows-how-toddlers-adjust-to-adult-anger
http://www.jconline.com/story/life/wellness/2014/11/04/toddlers-adult-anger/18412737/