This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx

When TEDxMadrid organizer Antonella Broglia was having a hard time explaining what TED is to a group of inmates, she simply decided to show them -- and they loved it. Listen to the impact that TED has made inside the prison and why a group of convicts are now preparing their own TEDx event.