Rogue cell phone towers (DC has many, used by police and spys), WhatsApp call blocking, managing junk mail folders (white listing friends), native Windows hard drive encryption (Bitlocker), guarding against Gmail hacks, Profiles in IT (Cheng Wei, founder of Didi Chuxing), Food Science (Champagne bubbles), live Champagne bubble demonstration, best gifts for techies in 2018 (from Apple Watch Series 4 to Bose QuiteComfort 35 Heardset), FCC declares text messages a data service (forcing CA to drop texting tax), top twenty 2018 iPhone apps (from YouTube to Twitter), blocking robocalls on iPhone and Android, and iPhone eSim has finally arrived. This show originally aired on Saturday, December 22, 2018, at 9:00 AM EST on WFED (1500 AM).