Facebook revamps political-ad rules after discovering Russian ad buys

Faebook CEO Mark Zuckerberg. (credit: Facebook)

Two weeks ago, Facebook admitted that a "shadowy Russian company" spent $100,000 on political ads targeting US Facebook users during the 2016 election campaign. At the time, Facebook turned information about these ad buys to special counsel Robert Mueller, who is investigating Russian interference in the election.

Today, Facebook announced that it would also be turning the information over to Congressional investigators. And Mark Zuckerberg announced that Facebook would be stepping up its efforts to prevent foreign election interference in the future.

"The integrity of our elections is fundamental to democracy around the world," Zuckerberg said in a video posted to Facebook. "We can't prevent all governments from all interference. But we can make it harder."