http://www.washingtonpost.com/blogs/the-switch/wp/2017/10/01/facebook-will-send-thousands-of-ads-bought-by-russian-operatives-to-congress-on-monday/

SAN FRANCISCO — Facebook will release copies of 3,000 Russian-bought ads to congressional investigators Monday, executives said.

“The big picture is that we're stepping up tomorrow to help Congress understand foreign interference on the ad platform and to make improvements to the ad platform to enhance transparency,” said Joel Kaplan, Facebook’s vice president for U.S. public policy, in an interview Sunday. “We’re committed to doing our part to prevent this type of malicious interference.”