For anyone interested, the chief engineer for SuperCruise was on Autoline After Hours this past week.
http://www.autoline.tv/journal/?p=55668
There both a video and a podcast version of the show. I listen to the podcast, as the show is mostly just 4 people sitting down talking to each other for an hour or so.
He's on for the first 45 minutes or so, talking about how the technology works (including the attention monitoring camera) and some of its limitations. After that, they mostly discuss recent auto news including monthly sales, Sergio's plans at FCA, & Mark Ruess's little 'whoopsie' with a pace car last weekend.