Facebook’s Sandberg and Twitter’s Dorsey defend their companies at Senate Intelligence hearing
"'There's an empty chair next to you from Google, they're not here today. Maybe it's because they're arrogant,' said Senator Marco Rubio (R-Fla.) blasting the search engine. Rubio then referenced a recent report showing how the group Campaign for Accountability was able to pose as the Russian troll farm Internet Research Agency and set up political advertising on Google’s ad network."