For those in prison, privacy is already hard to come by. Now, the Electronic Frontier Foundation is looking at patent applications from some companies that provide communication services to prisons. Some of the applications they’ve seen include ideas to incorporate ads on tablets that would be given to incarcerated people and plans for systems that would identify and disable drones suspected of bringing in contraband. Marketplace's Jed Kim speaks with Beryl Lipton, an investigative researcher with the EFF. Lipton says there are even ideas for robot guards that could deliver packages or electric shocks, depending on the situation.