Democracy Lost – Once considered a revolutionary, Nicaragua's Daniel Ortega has changed laws, silenced the media, and jailed his political opponents in his efforts to cling to power in the Central American country. Sharyn Alfonsi reports. A New Model – Lesley Stahl reports on a non-profit architectural firm called MASS (Model of Architecture Serving Society), whose work in countries like Rwanda is influencing new architectural concepts here in the U.S.The Future Of Sapiens – The future could see the world's human data, delivered through the rising power and reach of artificial intelligence, in the hands of a powerful few – a recipe for a dystopian tomorrow populated by "hacked humans," says Yuval Noah Harari. Anderson Cooper interviews the world-renowned author.