Yes. Facebook has been doing this for spam for ages, for Russian and Chinese and Iranian political influence rings more recently. It's sure not easy at that sca

Yes. Facebook has been doing this for spam for ages, for Russian and Chinese and Iranian political influence rings more recently. It's sure not easy at that scale, but it's not beyond Google's capabilities. Disclaimer: I work at Facebook, though I'm only involved in those efforts to the extent that I work on the data-storage systems that support the data scientists.