>> o'donnell: good evening, and thank you so much for joining us. we want to begin tonight with what has been a brutal day for social media giant facebook, instagram and what's app. all knocked offline for about six hours today leaving billions of users locked out. the cause of the outage still not clear tonight but reports the systems inside facebook were down, some employees had difficulty communicating and troubleshooting the problem. newborn stock tanked taking a nose dive today sliding nearly 4% and forbes said mark zuckerberg's fortune declined by nearly $6 billionch but the greatest cough to the social media giant may be new complaints made to the fcc, allegations from a former facebook employee, france francs haugen, who copied tens of thousands of pages of company research, accusing facebook putting the company's profits ahead of public good. kris van cleave reporting on facebook that you didn't see on "60 minutes."