A man looks out at the street where bombings occurred at the Boston Marathon on April 17, 2013 in Boston, Massachusetts. - 

One of the hardest things to do after a disaster is communicate. Former FCC Chairman Julius Genachowski and Harvard professor Jonathan Zittrain have a plan to address that. The idea is for people with Internet routers and mobile devices to form little pieces of a mesh communication network. There's a name for these things: ad-hoc networks.

Jonathan Zittrain joins Marketplace Tech host Ben Johnson to discuss. Click on the audio player above to hear more.

Follow Ben Johnson at @@TheBrockJohnson