Now Playing: 07-25-12 Marketplace

Incarceration rates have skyrocketed in the last 30 years, especially in New Orleans. Shereen Marisol Meraji reports on how jail time has now become a poverty creator. A number of startups in Mexico are using technology to bridge the gap between rich banks and poor customers. Both President Obama and Mitt Romney are sending out sweepstakes offers to meet celebrities for a small donation. Freakonomics Radio's Stephen Dubner talks about what effect the Olympic Games really have on its host city. And Tess Vigeland talks to Ryan Holiday, the author of "Trust Me, I'm Lying: Confessions of a Master Media Manipulator."