How a young Syrian girl's pleas for peace drew international attention

Last year, Bana Alabed sparked a worldwide following for tweeting from Aleppo in Syria while it was under attack amid a years-long civil war. Now, the 8-year-old is authoring a book about surviving and escaping the conflict. NewsHour Weekend Special Correspondent Marcia Biggs talked to Alabed and her mother in Ankara, Turkey, where they are living today.