Porn and Crap and Google
...a bipartisan group of senators expressed alarm that Google shares data about Americans with undisclosed foreign partners and that billions of dollars flow through Google to unknown parties around the world.
Google’s reasons for not disclosing its publisher partners are “rubbish,” according to Ruben Schreurs, “They have so many obviously nefarious or even sanctioned partners that use Google’s technology”
https://www.propublica.org/article/google-display-ads-piracy-porn-fraud