american sustainability manager suzanne johnson and a local team are making sure all of songdo's modernevelopments don't come at the expense of the environment. they're keeping a close watch on indices like water consumption and pollution. waste will be also digitally managed in the new city. garbage will be separated into boxes using special chips that decide what materials go where, and when. all of songdo's waste will be transported underground via compressed air pipes to a central processing station. it's incredible to watch it grow from a place where everybody was working in the construction industry to now finding and meeting people who live here as a family and maybe work in other industries. and to see communities start to network and friends start to network. >> the developers say songdo is not intended to be a luxurious urban home for the wealthy and privileged. it will be a one-of-a-kind city, made for people from all walks of life -- and regulated by one network. but there are concerns that a central network could be abused. >> yes all systems are being connected. everything