Alva Review-Courier -

Facebook is spending heavily to avoid a repeat of the Russian interference that played out on its service in 2016, bringing on thousands of human moderators and advanced artificial intelligence systems to weed out fake accounts and foreign propaganda campaigns.

But it may never get the upper hand. Its adversaries are wily, more adept at camouflaging themselves and apparently aren't always detectable by Facebook's much-vaunted AI. They employ better operational security, constantly test Facebook's countermeasures and then exploit whatever holes they find.

"They've got lots of very good, smart t...