Some $500 billion is spent each year by governmental entities on information technology. Now so-called “civic hackers” are taking the vast troves of data that cities like Chicago collect, and designing apps to make that data more useful to the public. From apps that track food poisoning to potholes to parking -- the city of Chicago is leading the way in the growing "govtech" sector. We find out more.

Two innovative web developers and Chicago's Chief Technology Officer talk about new apps for Chicagoans with data from the city.