On this week\u2019s Tech Nation, Moira speaks with Tech Nation\u2019s former biotech correspondent David Ewing Duncan about his new book - \u201cTalking to Robots: Tales from Our Human Robot Future.\u201d Then Dr. Daniel Kraft tells us how robotics are replacing surgeons, and McAfee\u2019s Gary Davis, expands on those massive thefts of online credentials \u2013 they are for sale and they are out there \u2026 on the Dark Web \u2013 yes, he explains that, too.