An engineer from EE the wireless network provider, owned by BT Group Plc, checks cabling on Huawei Technologies Co. 5G equipment undergoing trials in the City of London, U.K. (Photographer: Simon Dawson/Bloomberg)

Why 5G Phones Are Arriving With Subplot of Espionage

(Bloomberg) -- The 5G wireless technology now being introduced by phone companies promises to bring a world of innovations to mobile service -- from connected appliances to self-driving cars -- jus...