TED Talks Robert Neuwirth, author of "Shadow Cities," finds the world’s squatter sites -- where a billion people now make their homes -- to be thriving centers of ingenuity and innovation. He takes us on a tour.


Powerful discussion and argument for the future of squatter communities or shanty towns. A point to consider, by 2050 our cities will hold roughly 6 billion people. How can we deal with the issues of our cities at present and prevent the expansion of squatter communities? How do we incorporate such communities into formal organization of cities?