Facebook, Twitter, Google and where Silicon Valley’s money comes from

A 3D-printed Facebook logo is displayed in front of the Twitter logo, in this illustration taken October 25, 2017. REUTERS/Dado Ruvic/Illustration

Tech companies face dilemma after conundrum after balancing act, and now the spotlight is on their funding sources. 

There's Saudi money. Russian money. And let's not forget money from ads and fake news that add fuel to the raging fire of cultural, racial, political and religious divisions in the United States and elsewhere.