Ben Shneiderman is a professor in the Department of Computer Science at the University of Maryland, where he is also the founding director of the Human-Computer Interaction Laboratory and a member of the Institute for Advanced Computer Studies as well as author or co-author of numerous influential books. On this episode of the PFF Podcast, Ben talks with Jeffrey about human-computer interaction, the balance between human and machine control and building machines that empower people - enhance, augment and amplify human abilities, not replace or mimic them.