Who is Delcy Rodríguez?

From the BBC World Service: Delcy Rodríguez, who had served as vice president under President Nicolas Maduro, has promised stability amid economic uncertainty. After taking an oath of office, she vowed to guarantee the peace of the country, including "the economic and social tranquillity of our people." This morning, we recount the history of how Venezuela got to this moment. Plus, Nestle recalls baby formula products in Europe over concerns of food poisoning toxins.