I believe the day will come when you will be obsolete. This is the cbs evening news. Mason and this is our western edition. Good evening, im anthony mason. Facebook promised greater cooperation today in the investigation of russian meddling in the u. S. Election. Founder Mark Zuckerberg said the company will turn over to Congress Thousands of ads that were posted on facebook and later linked to russia, and he promised to make political ads on facebook more transparent, disclosing who paid for them. More now from john blackstone. We can do better. Reporter in a live appearance on facebook, Mark Zuckerberg admitted russians found it easy to place election related ads on the social Network Without being discovered. Os most ads are bought programmatically through our apps and website without an advertiser ever speaking to someone at facebook. Reporter facebook has also admitted that its internal investigation found more than 3,000 electionrelated ads, tsting more than 100,000, paid for by