On the show today: In the wake of a $170 million fine for child privacy violations, YouTube launched YouTube Kids; Facebook stops using facial recognition as a default; Amazon to test hand recognition at Whole Foods for checkout; Porsche unveiled the Taycan, its first all-electric sports sedan; behind the scenes at the Television Critics Awards press tour - an inside look at the tech behind TV's top shows; Unboxing the Asus Zenbook Duo Pro - a dual screen laptop; The Helium hotspot network that pays hub owners in cryptocurrency; British inventor delivers mail to island using a jet suit; NASA is teaming with European agencies to stop asteroids from hitting earth; A space hotel could open by 2025; and how packages and workers are tracked in doors, where GPS can't function.