On this episode of The New Screen Savers for Saturday, January 27, 2018, with Leo Laporte and Patrick Norton: - Do you know what Blockchain is, what it can do, and why it's all the rage? We have two experts here to help explain: Eric Cole Ph.D., former Technical Director for the C.I.A., and served on Cybersecurity Commission; and Kevin Quennesson an AI and Blockchain expert, formerly at Twitter's AI group Twitter Cortex. - Which is better, Siri or Google Assistant? In our #TWiTSwitch 2018, Megan Morrone and Jason Howell put them to the test in a battle to answer questions! - Leo shows us Canary, a device that thwarts attackers on your network. - Megan has a review of the Apollo Personal Cloud system. Find out if it is right for you. - Are NUC's powerful enough for some heavy hitting programs like AutoCAD and Photoshop? We'll answer this in Call for Help.