https://www.reuters.com/article/us-eu-facebook-privacy/facebook-big-tech-face-eu-blow-in-national-data-watchdogs-ruling-idUSKCN2DR0O7 >LUXEMBOURG (Reuters) -Facebook and other Silicon Valley giants could face more scrutiny and sanctions in the European Union after the bloc's top court backed national privacy watchdogs to pursue them, even when they are not their lead regulators.