5G

One building on Naghten Street in downtown Columbus has black windows, multiple security cameras and no clear sign of what goes on inside.

5G cellular service is rolling out in Central Ohio, despite some concerns in other cities about how it could affect commercial flight safety.

China has instituted an online video-game curfew for minors, banning anyone younger than 18 from online play between 10 p.m. and 8 a.m. Intended to thwart…