Robert Muggah: The biggest risks facing cities -- and some solutions

With fantastic new maps that show interactive, visual representations of urban fragility, Robert Muggah articulates an ancient but resurging idea: cities shouldn't just be the center of economics -- they should also be the foundation of our political lives. Looking around the world, from Syria to Singapore to Seoul and beyond, Muggah submits six principles for how we can build more resilient cities. "Cities are where the future happens first. They're open, creative, dynamic, democratic, cosmopolitan, sexy," Muggah says. "They're the perfect antidote to reactionary nationalism."