Did Big Tech Get Too Big? U.S. Crackdown Seeks Answer

The rise of global technology superstars like Amazon, Apple, Facebook and Google created new challenges for the competition watchdogs who enforce antitrust laws around the world. The companies dominate markets in e-commerce and smartphones, search advertising and social-media traffic. Antitrust enforcers globally have ramped up their oversight. The stepped-up scrutiny in the U.S. under President Donald Trump will likely continue whether or not he wins re-election in November, as Democrats, too,